Drinking water purification systems for apartments. How to choose a water filter: recommendations from experts on which water filter to choose. Filter care
The quality of tap water leaves much to be desired. Boiling makes it relatively safer, but not cleaner. Constantly buying bottled water is inconvenient and unprofitable - a decent amount accumulates over the course of a year. Therefore, many people think about buying a filter for drinking water. They can be different - they are put directly on the tap or installed under the sink, they differ in the number of degrees of cleaning - choosing the right device is not easy. Therefore, we decided to tell you which filter gives the best cleaning results, how to determine the necessary option for turning hard, rusty, unfit for drinking liquid into good quality drinking water. Ten tips will help you make the right choice.
Main selection criteria
How to choose the best filter based on basic parameters?It is difficult to choose a suitable filter without understanding what task it should perform. Therefore, before going to the store you will have to understand a few points.
- Degree of water pollution. The worse the water quality, the more powerful the filter is needed. If even visually you notice that the color of the water is cloudy or reddish, pay attention to better systems.
- Degree of purification. It all depends on your preferences. Most budget filters make water simply drinkable; more expensive systems provide the maximum degree of purification. The composition of the water becomes closer to distilled.
- Purpose of application. If for use at work it is more convenient to purchase a regular jug, then for an apartment the best option would still be a stationary model.
Types of filters
What type of filter is better to choose?There are many water filters on the market. They differ in design, quality of purification, size, and volume of water produced. Let's look at their characteristics, advantages and disadvantages, and you decide for yourself which option to choose.
- Filter jug. Primitive in design, compact and inexpensive devices. They consist of a 1-2 liter container, a reservoir and a filter located inside. The use is very simple - water is poured into the tank, passes through the filter and flows into the jug. An inexpensive and simple option - you can take it to work, on trips, or use it in an apartment, provided that your water needs are small. This type of device copes well with light stains, but you should not expect deep cleaning from it.
- Flow filter. More complex systems connected to the water supply. Cheap models purify water only from chlorine and large foreign impurities. Models that use carbon filters also cope with phenol, a bacterial environment. More expensive filters are more effective. Flow models differ in design. There are stationary devices installed under the sink or on a table next to the sink. A separate tap is provided for supplying purified water. Filter attachments are less common. All flow devices are easy to use, compact, and purify water quite effectively. To install them, you do not need to resort to the services of specialists. But there are also disadvantages - a short service life of the filters, high cost of consumables.
- Multistage systems. The best filters for purifying heavily contaminated water are devices with a reverse osmosis membrane with several stages of purification. They cope well with any foreign impurities or substances. Many models are quite compact in size, like flow filters, and are designed for installation under the sink. The disadvantages include the rather high cost of the devices themselves and consumables, as well as considerable water consumption. For example, to obtain one liter of purified water suitable for drinking, about five liters of the original liquid will be consumed. For apartments with water meters, this option will result in an additional expense item.
Filter manufacturers
Which manufacturers make the best filters?If you want to get good quality water, you should choose well-known, reputable manufacturers. Several brands are considered the best and most popular.
- "Aquaphor". A well-known Russian brand that produces all types of filters. The company offers models in different price categories. A big plus is that replacement cartridges for filter jugs can be purchased even in regular supermarkets. You will find many flow systems of this brand on sale. Some of them use the unique substance Aqualene - our own patented development. Models with reverse osmosis are also available. The brand's products are popular among users due to their good quality and reasonable cost.
- "Barrier". Another Russian brand that is a worthy competitor to Aquaphor. The manufacturer offers customers jugs, tabletop filters, under-sink models, and complex reverse osmosis devices. You can choose the best option, taking into account the area of the apartment and the kitchen in particular, your budget and needs. It differs from other companies in its interesting offers - the assortment includes shower filters and children's filters.
- Aqualine. A budget but popular brand made in Taiwan. Specializes mainly in flow systems and reverse osmosis models. At a low price, the products are of good quality. The main distinguishing feature is that transparent plastic is used to make the first flask, through which you can visually monitor the degree of filter contamination.
In addition to these three brands, there are other brands that deserve attention - Novaya Voda, Kristal, Atoll, Geyser.
Price
How much do water filters cost, which one is better to choose - expensive or budget?The cost of a filter device for drinking water depends on the type of design, brand, performance, and set of functions.
- The price of the simplest jugs starts from about 300 rubles. But here it’s better not to save money and take a slightly more expensive model. For example, “Aquaphor Provence” with the function of purifying free chlorine and softening water.
- The cost of faucet attachments starts at an average of 1,500 rubles. But here, too, we recommend giving preference to models with optimal cleaning quality. Users speak well of the Breeze filter with the functions of iron removal, water softening and purification from free chlorine.
- The cheapest desktop dispenser costs about 1,500 rubles. But, again, consider more solid models. The Keosan KS-971 filter is quite popular among users. It costs about 7,000 rubles, but has six stages of purification, the function of deferrization, softening, and mineralization of water.
- Under-sink filters are more expensive. You can also find very cheap models starting from 500 rubles, but, as a rule, they do not cope with their functions and quickly break down. The cost of reliable and efficient models starts at an average of 5,000 rubles.
- Reverse osmosis systems provide the highest quality cleaning, but they also cost accordingly. The price of a functional and high-quality filter is at least 6,000 rubles. There are models that cost over 50,000 rubles. The price depends on the brand, set of functions and number of cleaning levels.
Initial water quality
How to choose the best filter based on the initial water quality?The water that flows from the tap may contain a variety of impurities - harmless and hazardous to health. Therefore, before purchasing a filter, it is advisable to find out the quality and composition of the water. Take the time to take a water sample to a sanitary and epidemiological station or a private laboratory for analysis.
Based on the results obtained, you can already select a filter. Be sure to pay attention to the hardness of the water. For values up to 8 mEq, a conventional flow filter can be installed. If the hardness is higher - up to 8-12 mEq, only a reverse osmosis system can handle the cleaning. The same system should be given preference if the examination report indicates the presence of organic substances, bacteria, and fungi.
Cleaning method
Which filters are better, which one to choose - absorption, membrane or osmotic?Modern systems are made up of several types of filters for the most effective water purification. The most commonly used options are:
- Absorption. A filter element based on an absorbent, the function of which is most often performed by a carbon filter. With use, the quality of cleaning gradually decreases. The filter needs to be changed regularly. If this is not done, after a while it itself will become a source of pollution.
- Ion exchange. The operating principle is based on the reaction of replacing unacceptable substances with harmless compounds. Such filters are good to use, for example, when calcium salts exceed the norm. A small minus is that the exchange buffer depletes quite quickly.
- Membrane. The contaminated water is passed through a molecular sieve - microscopic channels in the membrane. Their diameter is so small that it does not exceed the size of a water molecule. All larger molecules and particles cannot penetrate the membrane. Filters are effective and economical to operate.
- Osmotic. Modern, most effective purification devices using the principle of reverse osmosis. They are distinguished by a high degree of purification, removing all salts, minerals and other foreign substances from water. The downside is the high cost. Compared to flow-through devices, the productivity is very low, so the reverse osmosis filter must be equipped with a storage tank.
Cleaning steps
How many cleaning stages are best to choose?Different filters have from one to eight stages of cleaning. The more of them, the safer and more pleasant the taste of the water. In multi-stage devices, the first three stages are considered the most important.
- Water is purified from mechanical impurities - rust, silt, sand. Particles are retained by porous polypropylene filters. Some of them remove iron dissolved in water already at the first stage.
- Heavy metals disappear from the water, and it softens due to ion exchange.
- Chlorine, foreign odors, and pesticides are removed by absorption. The general properties of water improve – smell, taste, color. The most common absorbent substance is activated carbon. Some companies produce it from coconut shells, increasing the absorption capacity of the filler by 2-3 times. The addition of silver prevents the development of pathogenic microflora inside the filter.
Subsequent stages depend on the filter model. For example, reverse osmosis, iron removal, water mineralization.
Additional filter properties
What additional properties of filters should I choose - iron removal, mineralization?Some models provide the possibility of installing additional filters. For example, to enrich water with minerals after treatment with reverse osmosis systems.
- Additional filters for removing iron. It is advisable to install such a filter only in those areas where its content in the water is high. Excess iron is harmful to health and the condition of household appliances. The water supplied through the central pipelines contains divalent and trivalent iron. Coarse filters can only handle ferric iron. To get rid of ferrous iron, it is necessary to use more complex filling-type devices with multicomponent mixtures. In addition to their main purpose, they eliminate excessive water hardness, manganese, and a number of other compounds.
- Water mineralization. Reverse osmosis filters “for washing” retain not only harmful compounds, but also useful mineral components. Some models are equipped with an additional mineralization option. If not, then you can install the mineralizer yourself. Just before purchasing a filter, check with the seller whether it is possible to add a mineralizer to the model you have chosen. This is a small plastic device filled with slowly dissolving minerals. They already end up in purified water.
Water consumption
How to choose the best filter based on water consumption calculations?Before purchasing a device, you need to calculate how much drinking water your family needs per month. Every day a person needs two liters of clean water. To this volume you need to add about another liter, which will be consumed in the form of soup or coffee. That is, one person needs about three liters of water per day. For a family of three people, the average water consumption per month will be about 270 liters. This figure should be compared with the performance of the model and the filter resource.
For example, cartridges for jugs have a small resource - only 250-300 liters. It will require monthly replacement, which is not very economical. Models with the reverse osmosis principle have a longer service life - 3000-8000 liters. At maximum performance, the lifespan of one cartridge is about 30 months. But experts do not recommend using the same filter for more than a year, since it can itself become a source of water pollution, so purchasing devices with a maximum service life also does not make much sense. Choose the golden mean.
Filter fillers
Which filter fillers are better to choose - coal, shungite, zeolite?The cleaning principle is approximately the same for all filters, but various substances can be used as filler.
- Activated carbon. It is used very often due to its high level of absorption. It purifies water efficiently and is quite affordable.
- Zeolite. Quite often used to fill filters. Removes ammonia and other harmful organic compounds from water. A unique natural mineral easily copes with the absorption of salts of heavy metals, chemicals, nitrates, phenols, bacteria, pathogenic microorganisms and radioactive elements.
- Shungite. This is a rock that has powerful cleansing properties. It is considered the optimal filler for removing chlorine and a number of complex organic and organochlorine compounds. Simultaneously with purification, shungite saturates the water with useful microelements, magnesium and calcium salts.
Do we often think about the question of what kind of water we use at home for drinking or cooking? Alas, we have to admit that not everyone has yet fully understood the need for its purification and filtration. But this is by no means an idle question: the quality of water from autonomous sources or from the city network very often lies outside the limits of acceptable sanitary standards. Simple boiling or settling can help only partly, and is unable to cope with the overwhelming number of factors of pollution or even infection.
It is gratifying that the number of supporters of a reasonable attitude towards health, their own and those around them, is still constantly growing. Direct evidence of this is the expanding popularity and demand for household water purification devices. Filter manufacturers are constantly working to improve their products and expand their product range. But the variety on sale can easily confuse a buyer who is purchasing such products for the first time and is not too knowledgeable about how to choose a water filter.
Where does the choice begin?
This publication will not contain a detailed story about water polluting factors, technologies for purifying it from certain substances, or the operating principles of various filtering devices.
How are coarse and fine filters designed and how do they work?
It is very important to know this, but it is not worth repeating. A separate large article on our portal is devoted to the issue of the design and functioning of various types.
Therefore, today the emphasis will be placed mainly on consumer problems - what to choose for a person to provide clean water to his home. Let us also take out of the brackets complex powerful water treatment stations assembled from several column-type filters - their selection, configuration and installation should only be carried out by specialists. Let's consider the problem in the context of purchasing a ready-made filter or filtration complex in a specialized store, designed for the needs of one average family.
Any task should always begin with a clear understanding of what you want to achieve in the end. When purchasing essentially any thing or product, a person usually already has an idea of what functions or qualities he hopes to get for his money spent. The water purification filter is no exception in this matter. You need to confidently imagine what properties it should have.
A simplified approach like “just purify the water” is, of course, complete amateurism. Along with obvious signs of pollution (which also need to be dealt with skillfully), water may contain substances or microorganisms that are completely invisible to sight, smell or taste and pose a threat to human health.
You should not trust your superficial feelings, much less the advice of your neighbors. Subjective opinions can lie in a wide range - from “we have been drinking this kind of water all our lives” to some far-fetched “horrors”, which more likely belong to the category of “urban legends”. And, in addition, the quality of water from neighboring nearby sources, or even in neighboring urban buildings, can vary significantly.
As a result, you can fall into one of two extremes:
- Purchasing a filter that does not have the required cleaning functions will simply be a waste of money.
- Taking advantage of the obvious ignorance of the consumer, store sellers will try to impose an expensive filter system for which there is absolutely no need. In the end, this is also lost money.
The optimal solution is to submit a water sample from a source or water supply for laboratory analysis. This, of course, also costs money, but such expenses will be justified.
The best decision is to conduct a laboratory test of water from your source.
Carrying out the analysis immediately solves a lot of questions:
- You can immediately assess the fundamental suitability of an autonomous source for use in food needs.
- The analysis results will help you choose the right filter system. Repeated analysis, after installing the filter, will give a clear picture of its effectiveness.
- Regular testing will allow you to track the dynamics of changes in the biochemical composition of water - an extremely important measure for autonomous, especially newly equipped sources.
- Having a laboratory test report in hand can become a document on the basis of which it will be possible to make claims against city utilities.
By the way, many thoughtful people, when purchasing a new home, immediately require the presentation of a document on the quality of drinking water.
To carry out the analysis, you need to decide on a laboratory. You should not resort to the services of laboratories working at water supply organizations (they can easily underestimate pollution indicators), and at companies involved in the installation of filtering and purification systems (there, of course, there may be another extreme). It is best to choose an independent organization that has the appropriate government certification.
Laboratory tests are divided into two types - chemical and microbiological. For autonomous, especially surface sources, both are mandatory. For tap water, which, in theory, should have already gone through the stage of disinfection, they are often limited to only a chemical test, although a microbiology test will also never be superfluous.
It is most reasonable to agree in advance with laboratory workers about the time of delivery of the collected water samples, since there are certain restrictions on their shelf life (2 ÷ 3 hours).
Water intake also requires compliance with certain rules:
For chemical analysis, 1.5 liters are required.
- The optimal solution is a clean plastic bottle, but only for drinking still water. It is prohibited to use containers for sweet drinks or beer.
- The tap is opened and the water is given at least 15 minutes to flow freely. (If the source has not been used for a long time, it will take even 2 hours).
- The bottle and cap are thoroughly washed with the same water that will be analyzed. No detergents are used.
- Then the pressure is made minimal, so that when pouring into the bottle, aeration is not created - the appearance of bubbles. Excess oxygen can greatly distort the overall picture.
- The container is filled completely, overflowing, in such a way that there is no air left under the tightly screwed cap.
For biological analysis, the requirements are completely different.
- The required volume is about 0.5 liters. The container must be absolutely sterile - if, for example, a glass jar is used, then both it and its lid are thoroughly steamed. Many laboratories accept samples for microbiology exclusively in their own sterile disposable containers, which are given to the customer.
- To collect water, you must wear sterile medical gloves.
For the “purity of the experiment”, taking a water sample for biological analysis is carried out wearing sterile gloves
- Even before opening the tap, the cut of the spout is either burned with fire, or carefully treated with medical alcohol - it is necessary to completely prevent microorganisms from entering the sample from the outside.
- The tap opens and water runs under maximum pressure for at least 10 minutes.
- After this, the sterilized container (cold) is filled to the top and immediately sealed.
Typically, the execution time for an order for high-quality laboratory testing of water is about 5 ÷ 7 days. By the way, if they promise to do it literally in a day or two, this should alert you. It happens that not entirely conscientious companies conduct a superficial rapid test, which is then passed off as an in-depth study.
As a result, the customer must receive a protocol certified in accordance with the established procedure, which has the force of a legal document.
As a rule, this is a table in which, for clarity, the maximum permissible standards for water established by SanPiN and the actual indicators obtained are indicated.
Having such a document in hand and highlighting the positions that require adjustment, it will be possible to select filters for the appropriate focus of action.
The laboratory research protocol will help determine the “strategy” for water treatment, and can also be of assistance in filing claims against utility services.Is it possible to limit ourselves to conducting independent rapid tests, kits for which can be purchased in stores?
Experts have a unanimous opinion on this matter - such analysis is not a full-fledged alternative to laboratory analysis. Of course, it will show the presence of a problem, but it will not be able to determine the exact quantitative and component indicators of pollution, that is, the data for a high-quality selection of the filter system will be clearly insufficient.
And one more parameter that should be determined in advance is the required filter performance. Since the article discusses devices for drinking water purification and for cooking, we can proceed from the average norm of 3 liters per day per person. Of course, the filter should not operate at the limit of its capabilities, that is, it is advisable to increase this rate, say, by half.
Thus, if, for example, five people live in a house (apartment), then it is easy to determine that approximately 30 liters of purified water per day will be required. Accordingly, the purchased device must cope with such a load.
Now let's move on to considering various models of household
The simplest option: filter - jug
Filter jug device
For those who do not want to spend a significant amount on purchasing a filter, do not need large volumes of purified water, or do not want to deal with any installation or connecting the system to the water supply, we can advise you to get a “light option” - a jug. Of course, such a solution is only possible if the quality of the incoming water allows it.
The simplest and most inexpensive, but far from the most effective solution is to purchase a jug filter
Although externally, filter jugs can vary greatly in shape and color design. The basic design is always the same and is not very complicated.
Essentially, these are two containers separated by a partition and communicating only through a filter cartridge.
The jug body (item 1) is used to collect purified water. It is always made of transparent food-grade polymer; a volume scale is often placed on its walls for ease of use. The capacity of the jug may vary - usually there are a number of models on sale with a volume of filtered water ranging from 1.3 to 4 liters. The choice for this parameter depends on the family’s need for drinking water.
The upper container (item 2) is an insert into the housing. It is also made from impact-resistant food-grade plastic, but usually has a darker tone (the color may vary depending on the design idea). This compartment is designed to receive water to be filtered, and its capacity is usually about half the usable volume of the jug.
At the bottom of the insert, where it forms a kind of funnel, there is a socket into which the filter cartridge is tightly inserted and fixed (item 3). The purpose, that is, the functionality of the cartridge can be different - this is selected based on the existing “clinical picture” of the state of the water.
It is important to know that the locking or threaded connection between the cartridge and the upper container may vary significantly from one manufacturer to another. Apparently, this is a method of encouraging the purchase of only branded components.
There is a spout in the upper part of the body for convenient directed drainage of filtered water (item 4). The design is such that even with a strong tilt of the jug, water from the upper and lower compartments does not have the opportunity to accidentally mix.
The collection of water for filtration is carried out with the lid folded back (pos. 5), which can be equipped with a convenient lock (pos. 6), or through the intake hatch, which also necessarily has its own lid to prevent accidental entry of dust or debris inside.
The filter jug always has a comfortable handle (item 7). A “reminder” can be placed on top of the lid or on the handle - a mechanical calendar that will prompt the owner about the timing of changing the filter cartridge. There are also expensive models that have an electronic display. Moreover, when selling some branded models, it is practiced to register customers who will subsequently receive Internet or SMS messages about the need to replace them.
The operation scheme is obvious - water poured into the upper container independently, without any influence, only due to gravity, passes through the filling of the cartridge, receives the required cleaning and accumulates in the jug. As water is consumed for drinking or kitchen needs, new portions are added to the receiving container.
Cartridges used
It is the cartridge that is the most important element of such a filter, so special attention should be focused on its selection.
The shape of the cartridge and its locking part can be different, and there is almost no question of interchangeability, unless, of course, this is specified by the manufacturer.
But cartridges for one filter model can have different purposes:
- Replacement elements for water of standard quality are sold - they help cope with possible unpleasant odors, normalize taste, remove heavy metal ions, chlorine impurities, organic compounds, etc. The usual sorption material for them is granular activated carbon.
- There are cartridges with a pronounced softening effect - they additionally contain a certain amount of ion exchange resins.
- You can also choose a cartridge for a source with a high iron content - they use reagent-free technology for iron removal and filtration.
- For sources whose water does not undergo disinfection, there are special elements with a bactericidal effect.
- Cassettes are produced, the refilling of which involves a healing fluoridation effect on the water.
Most companies use silver in one form or another in cartridge fillers - this prevents the development of bacterial colonies inside them. And besides, each manufacturer tries to surprise the consumer with its own original developments.
Typically, at the inlet and outlet of their cartridge there is a mesh or membrane that performs the function of mechanical filtration. In addition, the replacement elements usually have a special throttle device that equalizes the speed of water passing through the filler, regardless of the level of filling of the upper section of the jug.
Advantages and disadvantages. Options for selecting filter jugs.
The following can be said about the positive qualities of filter jugs:
- Their operation is the simplest, which anyone can handle.
- There are simply no installation operations other than connecting the cartridge. Ideal for work, dorms or rental housing.
- The jug can be easily taken with you as needed, for example, when going on vacation.
- Low cost, affordable for any family.
There are also significant disadvantages of such filtering:
- Cleaning occurs only in certain portions. For example, to fill a five-liter kettle, you will have to fill the filter twice.
- The cleaning speed is low, rarely reaching the threshold of 400 ml/minute, and more often – even much less.
- Frequent (about once every month and a half) cartridge replacement is required. the period may be even shorter.
- Quite high operating costs in terms of the volume of filtered water, if you look at it in perspective. So, after just one and a half to two years, the total costs can equal or even exceed the costs of a truly powerful and high-quality multi-stage filtration installation.
When choosing a filter jug, you should be careful, as the market is replete with cheap counterfeits.
Under no circumstances should they buy them in random places - there are specialized stores for this. It is best to choose models from well-known brands.
Carefully inspect and literally sniff the body. The polymer should not emit any odors. Food grade plastic must have the appropriate pictographic markings shown in the figure.
This sign indicates that food grade plastic was used to make the jug.
You should immediately evaluate the possibility of purchasing original replacement cartridges with the required functionality, in accordance with the quality of the water source, and their affordability.
It is necessary to choose a jug based on volume wisely. Remember - such a filter is not a “decanter” at all, but only serves to purify water. The capacity of the vessel should correspond to real needs with a small margin. It is not recommended to store filtered water for more than a day. This means that you will have to simply drain the excess, wasting the resource of the replacement cartridge.
Typically, a one and a half liter jug is enough for a single person or a couple. It is fashionable to think about purchasing a filter with maximum capacity, about 4 liters, only if it will be used in a large family.
Cartridges purchased must be in original sealed packaging. Their expiration date must be checked.
The convenience of the jug and its external design are certainly important criteria, but they should still be assessed last.
To complete the section on jug filters, here is a short overview of popular models from well-known manufacturers and some cartridges for them.
Model, brief description | Illustration | Capacity (jug/funnel) or cartridge resource (liters) | approximate cost |
---|---|---|---|
MANUFACTURER - "BARRIER" | |||
Barrier-Style jug, compact layout, mechanical resource indicator | 2.5 / 1.0 | 490 rub. | |
Jug "Barrier Grand NEO Ruby", volume scale, mechanical resource indicator | 3.7/2.0 | 550 rub. | |
Cartridge “Barrier – 7 iron” for standard and water purification and deferrization | 350 | 250 rub. | |
Cartridge "Barter-ultra" for filtration and bactericidal treatment of water | 200 | 400 rub. | |
MANUFACTURER – “AQUAPHOR” | |||
Aquaphor Line jug of classic design, compact size | 3.2 / 1.4 | 350 rub. | |
Jug "Aquaphor Prestige", mechanical indicator | 3.0 / 1.35 | 540 rub. | |
Cartridge B100-15, universal action | 170 | 155 rub. | |
Cartridge B100-6, softening | 300 | 320 rub. | |
MANUFACTURER - "GEYSER" | |||
Jug "Geyser Matisse-Chrome", graphite or deep blue color, plastic with increased heat resistance | 4.0 / 1.5 | 840 rub. | |
Jug “Geyser Dolphin” - stylish model, 5 shades to choose from | 3.0 / 1.4 | 380 rub. | |
Cartridge "Geyser 502", universal, with a softening effect | 300 | 210 rub. | |
Cartridge "Geyser 301", universal type | 300 | 170 rub. | |
MANUFACTURER - "ВRITA" | |||
Jug "Elemaris XL", with electronic cartridge resource indicator | 3.5 / 1.5 | 1450 rub. | |
Marella XL jug, electronic display | 2.2 / 1.2 | 790 rub. | |
"Brita Classic" is a universal cartridge. Suitable for some models of Aquaphor jugs | 150 | 290 | |
"Brita Maxtra" - cartridge with four stages of water purification | 150 | 360 rub. |
Video: review of Barrier brand filter jugs
Filters in the form of a faucet attachment
Another type of filters that can be classified as the simplest water purification systems.
As the name implies, these devices are simply put on the faucet spout head. Water is filtered using a flow method, due to pressure in the pipes. This allows the use of carefully compacted sorbent backfill in such filters, in contrast to jug cartridges, that is, to improve the quality of water purification.
The advantages of such tabletop filter attachments are increased resource and productivity. The device does not clutter up the space directly above the sink.
However, there are also many shortcomings. The design is quite voluminous and will take up a lot of useful space near the sink to which it is “attached”. When using a coupling connection, the inconvenience is the same as with a compact nozzle - the need to connect and disconnect it with each set of filtered water. If a connection with a diverter is used, then the tube extending from it may cause interference.
Drawing water from such a filter requires care - careless activation will result in liquid spilling on the table surface. The possibility of accidental release of hot water into the filter remains fully intact.
Model | Short description | Illustration | average price |
---|---|---|---|
"Aquaphor Modern" | The body is spindle-shaped, the spout is located on the side. Dimensions 273 × 117 mm. Filtration rate – up to 1.2 l/min. The resource of the replaceable cartridge B200 is up to 4000 liters. Mechanical calendar - reminder. | 770 rub. | |
"Barrier Optima" | Original design, microprocessor control over the residual life of the filter module. Swivel spout. Cartridge resource – up to 1500 liters. Filtration rate – up to 1 l/min. | 1200 rub. | |
"Rodnik-3M" | Model for wall mounting. Dimensions 315×120 mm. Weight when not filled with water is 1 kg. The resource of the replaceable module is 3600 liters. Filtration rate – up to 2 l/min. | 790 rub. | |
"Geyser 1 UZH EURO" | A modern model with a wide selection of filter modules of various functionality with the possibility of regeneration. The module resource is up to 25,000 liters, including without regeneration - up to 7,000 liters. Filtration rate – up to 1.5 l/min. | 1500 rub. |
Filter systems with installation under the sink
Universal installations for filtration and fine water purification, which are usually located under the kitchen sink, are becoming increasingly popular among users.
The most rational solution is to hide the filter system under the kitchen sinkStructurally, such systems usually represent a series of cartridge-type filters, each with its own cartridge of a certain type of action. (The design of such filters is described in detail in the article linked above). Water along the path from the water supply to the point of analysis sequentially passes through all the modules, which ensures comprehensive cleaning of the highest class.
All filters, as a rule, are assembled on one console with a system of channels or tubes for transferring water from one module to another. There are models with a case design, in which the entire system is covered with a casing.
The arrangement of filter flasks is most often linear. In some multi-stage systems, an arrangement in two rows or two tiers is possible, with vertical and horizontal placement of modules.
The number of modules, that is, cleaning stages: from the minimum - one, to four, and sometimes even five. This determines the highest “flexibility” of the system - the installation dimensions of replaceable cartridges, as a rule, are kept the same from one manufacturer, which allows you to accurately select the general characteristics of the entire complex depending on the results of laboratory water testing.
Such complexes are very convenient to use. When installing them, the water supply is immediately connected to the water supply, and a separate tap is installed at the sink, connected to the last stage of filtration. At any time, you can substitute a container, open the tap and draw the required amount of purified water. Moreover, the diameter of the connecting tubes, connecting channels and the parameters of the external tap provide optimal pressure for high-quality filtration - there is no risk of exceeding it. In addition, the possibility of accidentally letting hot water into the filter modules is completely eliminated.
The disadvantages of such complexes can only be considered a certain complexity of the initial installation, although for the owner who is familiar with basic plumbing techniques, no special problems should arise. And the relatively high cost of such complexes can hardly be considered a disadvantage - the high quality of cleaning is worth such costs, and the considerable resource of replaceable modules ensures a quick payback for the filtering unit.
The choice of such filter systems has its own characteristics.
- Since the installation is supposed to be hidden under the sink, issues of external design, as a rule, are not among the priorities. It is much more important that the dimensions of the complex correspond to the actual dimensions of the space allocated for its installation.
- Since the system most often involves multi-stage cleaning, you should focus not on the persuasion of the sales consultant, but on the available results of laboratory research. It is important to determine priorities in advance in order to choose the right modular content of the kit.
- Some complexes have expanded functionality - after the first stage of mechanical cleaning there is a branch to a regular mixer or to a dishwasher, heater, etc.
- When assessing the performance of the complex as a whole, you should focus on the readings of the “slowest” cartridge. Typically, at the outlet of the faucet, a flow rate of about 1.5 ÷ 2 liters per minute is provided - a completely acceptable characteristic.
- Filter modules may also differ in the size of their resource. The owner will have to monitor this on his own, since it may be necessary to change cartridges sometimes not at once, but “in stages.” Some modules can be periodically regenerated.
Of course, you should check the completeness of the delivery. Usually the system is supplied with everything necessary for its complete installation - a hanging or floor-standing console, flasks, a set of cartridges (you can often choose it at your discretion), a tee for inserting into the water supply with a pressure regulator, connecting pipes, a faucet for installation on a sink, a key for “packaging” of flasks with cartridges. Sometimes the kit includes additional accessories - all this is indicated in the product passport.
Model | Short description | Illustration | average price |
---|---|---|---|
"Aquaphor Solo Crystal" | The simplest single-stage sorption purification system. Dimensions 260x340x90 mm. Capacity up to 2.5 l/min. | 2500 rub. | |
"Aquaphor B510-08" | Replacement module for deep water purification. Resource – 4000 l or 6 months. operation | 350 – 400 rub. | |
Atoll A-211Eg (D-21s STD) | Two-stage system with mechanical and sorption filtration and hard water softening. Dimensions 355x365x145. Productivity – up to 3.8 l/min. | 7300 rub. | |
Atoll A-211E + Atoll A-211E g | An additional set of cartridges designed for 2 years of operation with replacement every 6 months | 4000 rub | |
"Barrier Expert Complex" | Three-stage purification system - mechanical filtration, sorption purification, softening and deferrization of water. Dimensions 368×267×95 mm. Productivity – up to 2 l/min. | 3700 rub. | |
"Expert Complex" | Set of cartridges. Resource 10,000 liters or 1 year of operation | 1400 rub. | |
"Aquaphor Crystal ECO N" | A system with four stages of purification, including disinfection, softening, iron removal, mineralization and water conditioning. Dimensions 377x342x92 mm. Productivity – up to 2.5 l/min. | 4800 rub. | |
"Aquaphor" K3, KN, K7 and K7V | A set of four replaceable cartridges with an increased resource - 8000 l or 18 months. operation | 2200 rub. |
Video: advantages of the Aquaphor-Trio water filter
Fibos type flow line filters
Another type of filter in which water is purified by passing through a filter element under the influence of pressure in the water supply system or pressure created by a pump if the water source is autonomous. These filters are built directly into the main line, that is, into the pipe through which water is supplied to the tap. This is convenient, since the procedure for initially connecting the filter is one-time and, as a rule, is performed by a specialist plumber. But anyone with basic plumbing skills can easily handle it.
The advantage of main filters is that clean water flows from the tap, which can be used for any purpose. In addition, you can install one filter for several water supply points (kitchen, bathroom, toilet, washing machine, dishwasher, etc.).
Let's look at how these filters work using the Fibos filters as an example.
- Unpurified water enters the outer filter flask.
- It passes under pressure through a filter element - a fabric wound with an ultra-thin microwire. The distance between the turns of the microwire is 1 micron.
- Contaminants remain in the outer part of the flask.
- Clean water from the filter element is supplied to the tap and household appliances.
- Contaminants are removed from the outer part of the flask simply by opening the drain valve.
The microwire is the main thing in the filter. What is it and how does it filter?
Currently, the only mass production of microwire in the world is located in Russia. Its production technology was effectively developed back in the USSR. The main areas of use of microwires are the military and space industries.
A microwire is an ultra-thin metal thread that is covered with glass insulation. Its thickness is no more than 25 microns, which is 40 times less than a millimeter.
In the filter element, the microwire is wound with a distance between turns of 1 micron. Only water passes through it, and contaminants remain in the outer filter flask, then they are removed when the drain tap is opened at the bottom of the Fibos filter. The glass coating of the microwire is necessary so that contaminants do not stick to the filter element and are easily washed off when washed.
If you look at a photo of the Fibos filter element under a microscope, you can see a metal core and a glass shell covering it. If you look closely, you can see the gap between the turns is about 1 micron.
In addition to fine purification of water from mechanical impurities, Fibos filters provide protection against bacteria. Bacteria attach to mechanical particles, forming a thin biofilm on them. Thanks to its ultra-fine filtration, the Fibos filter completely retains them.
If necessary, to soften water, remove chlorine, or reduce the iron content in water, an inexpensive cartridge filter with the appropriate properties can be installed after the Fibos-type main filter. Cartridges last much longer and are replaced less often, since the Fibos filter does the preliminary fine cleaning.
In terms of performance, there is a line of Fibos filters from 5 l/min for the kitchen, 16.5 l/min for an apartment or cottage, 50 l/min for a cottage, 83 l/min for a cottage, swimming pool to industrial samples of 1000 l/min .
Fibos filters operate at water pressures from 0.5 to 16 bar. They are supplied with a pressure gauge showing the pressure in the system.
Another plus of these filters: they practically do not reduce the pressure in your water supply system.
For ease of use, Fibos filters are equipped with devices for automatic washing.
The filters are compact, with a height from 146 mm to 183 mm without a pressure gauge and a flush tap.
Model | Description | average price |
---|---|---|
Convenient small filter for the sink. Produces 5 liters of water per minute. Filtration fineness 1.0 microns. Connection to 3/4" or 1/2" line (with adapter). Water temperature up to +95°C. | 6,990 rub. | |
Compact filter for a cottage or apartment. Produces 16.5 liters of water per minute. Filtration fineness 1.0 microns. Connection to 3/4" or 1/2" line (with adapter). Water temperature up to +95°C. | RUB 8,990 | |
An excellent filter for a country house or cottage. Produces 50 liters of water per minute. Filtration fineness 1.0 microns. Connection to 1" or 3/4" line (with adapter). Water temperature up to +95°C. | RUB 13,990 | |
The filter is ideal for cottages and swimming pools. Produces 83 liters of water per minute. Filtration fineness 1.0 microns. Connection to a 1.25 inch or 1 inch line (with adapter). Water temperature up to +95°C. | RUB 23,990 |
Filters with reverse osmosis system
The highest rates of water purification from any impurities, chemical or bacteriological contaminants are shown by filter units in which, in addition to conventional purification, a stage operating on the principle of reverse osmosis is used.
For “apologists” of crystal clear water - installations with a purification system based on the principle of reverse osmosis
To begin with, what is reverse osmosis?
If a vessel is divided by a membrane with microscopic pores, and then liquid with different concentrations of impurities is poured into these sections, the system will not be in equilibrium. Liquid from a compartment with a lower concentration will spontaneously tend to the opposite one, thus equalizing the overall concentration. This phenomenon is called forward osmosis.
But if an external force is applied to the volume of a more concentrated liquid—increasing its pressure—then the flow through the membrane will begin to occur in the opposite direction. And what goes into the neighboring section will depend only on the size of the membrane cells.
This is exactly how reverse osmosis filter units work.
Schematically - what is the reverse osmosis process?
Water enters the filter module under pressure (arrow No. 1). The module itself is divided into two parts by a membrane (red arrow), the microholes of which are only about 0.3 nm in size, so that they allow water molecules to pass through. Thus, small-sized water molecules penetrate into the second half, from where filtered water flows to points of accumulation or consumption (arrow No. 3). Increasingly larger molecules, not to mention mechanical suspensions, bacteria and even most viruses are reliably retained on the membrane and removed along with the concentrated solution into the drainage (arrow No. 2). A common occurrence is the proportion of ⅓ of the total volume - purified water and ⅔ - discharged concentrate.
In principle, such a scheme is capable of independently purifying water of any degree of contamination. However, in order not to “overload” the membrane and to prevent its pores from becoming overgrown, several stages of pre-filtration are provided. In addition, some molecules (for example, free chlorine, which is constantly present in tap water) are smaller in size than water molecules, and must be disposed of in advance. Therefore, pre-filtration includes not only mechanical, but also sorption purification.
The output is water, which in its characteristics approaches distilled water. From the point of view of cleanliness, this is excellent, but from the point of view of consumer qualities, not very good. Such demineralized water is devoid of even the slightest taste and smell, is of little use for drinking, and dishes prepared from it will not be the most delicious. Moreover, many doctors agree that water of this degree of purification can even be harmful to the human body.
To eliminate this drawback, additional modules are usually installed after reverse osmosis for household purposes. Usually this is a mineralizer that enriches water with mineral salts necessary for humans. A carbon post-filter and a biothermal module can also be installed, which normalizes the bio-composition of water. And if special sterilization is required, then an ultraviolet lamp can be used to complete the cycle.
The cost of such installations is quite high, so it is necessary to immediately determine how much there is a need for it. In addition, a number of other important criteria are taken into account when choosing.
- The reverse osmosis process requires a minimum pressure of about 2.8 bar. Water supply systems do not always meet these indicators. This means that you will either need to install a pump that increases the pressure in the system, or you will need to purchase a complex equipped with a built-in pump. That is, there will also be a need to organize power supply.
- The question of the performance of the filtering unit is very “how much”. Here it is important to find a “golden mean” so that the need for clean water is met and unnecessary surpluses are not created. We should not forget that in order to get a liter of purified water, about two liters will have to be drained into the sewer. That is, it would be extremely unwise to use such water for economic purposes.
Even the smallest installations are capable of producing up to 100 liters per day - this is more than enough for any family. So it’s hardly worth chasing high performance, especially since this affects the cost of the installation itself.
- You should decide which installation will be more convenient to use - storage or flow. In flow-through systems, filtration occurs only when the water tap is open - more efficient membranes are installed. In another option, the system has its own storage tank - the filtration process occurs only when necessary - when the total volume of accumulated purified water decreases to a certain level. It is very convenient - the owners always have a supply of clean water. The disadvantage is the considerable dimensions of the assembled installation. But the price of such complexes is much lower.
The most expensive module, naturally, is the reverse osmosis module, but its resource is quite long - the membrane usually withstands up to three years of operation. The remaining replaceable cartridges are changed more often as the resources contained in them are exhausted. Typically, pre-filters last up to six months, and a post-cleaning carbon cartridge lasts up to a year. After its depletion, the water may “signal” with a bitter taste.
Model | Short description | Illustration | average price |
---|---|---|---|
"Aquaphor OSMO 100 PN version 6" | Three-stage pre-cleaning, mineralizer and post-filter. Storage tank 10 l. Built-in pump. Productivity 15.6 l/hour. | 14,000 rub. | |
"Geyser Prestige PM" | Six stages of preliminary and post. cleaning. Storage tank 12 liters. Productivity – 12 l/hour. Two tap positions - for clean and mineralized water. | 14100 rub. | |
"Barrier Profi Osmo 100 boost" | Five-stage cleaning, built-in pump. Storage tank 8 l. High productivity – up to 20 l/hour. | 11000 rub. | |
"Atoll A-560E SailBoat" | An original monoblock design that simplifies installation of the system in the space under the sink. Dimensions 410 × 420 × 240 mm. 5 stages of cleaning. Built-in 8 liter membrane tank. Productivity – up to 6 l/hour. | 20,000 rub. |
Video: household filtration unit with reverse osmosis system "Aquaphor - Morion"
If you don’t know what the best under-sink water filters are on the market, then we suggest filling this knowledge gap by reading the rating according to the Mark.guru portal. Ordering water to your home is too expensive, and filtering it through tabletop filters is not cost-effective. This is where the rating of water filters for sinks comes to the rescue, which not only helps answer the question of how, but also helps in choosing a specific filter model.
Before you start choosing the best under sink water filter, you need to understand a little about the filtration system. All water purification systems can be divided into two groups: flow and reverse osmosis.
Flow filter- This is a fairly simple device that serves to generally improve water quality. However, the degree of purification by such filters can be very different, depending on a number of factors:
- the number of filtration stages that water goes through;
- what volume capacity the cartridge is designed for;
- how many people are water consumption calculated for;
- cost of replacing the filter in the installation.
Once you understand the answers to these questions, you can easily select a flow-through filter.
The main thing is to make sure that the purchased system includes a complete connection kit.
Reverse osmosis filters are considered to be of higher quality. The main difference is that they are equipped with a reservoir for storing filtered liquid. The quality of filtration in such models is much higher than in flow-through devices, but the requirements for the selection of such systems are much greater. When choosing such a system, it is important to consider the following criteria:
- pressure level in the pipeline (if low, it will not be possible to connect the system);
- the size of the system itself and the availability of free space under the sink;
- the material from which the faucet is made;
- storage volume;
- conditions for replacing filters and their cost;
- number of cleaning stages.
There are 5 main stages of cleaning. The first is filtration from large impurities, silt, rust and sand. The second filters substances such as salts, radionuclides and pesticides. The third is responsible for filtering residual compounds and making the water taste good. The fourth and fifth are responsible for disinfecting water, making it soft and tasty.
Flow filters
The easiest way to create an unlimited supply of clean water in your home is to install a filter under the sink. The flow-through version of such a system is distinguished by its simplicity and low cost.
Externally, the system consists of several plastic flasks connected by tubes. Each such flask has a filter installed, passing through which, tap water turns into clean and suitable for drinking.
Each flask has its own potential and is responsible for specific tasks. The flow-through main filter is small in size and easy to install. Below is a list of the best flow-type models.
1. Geyser Nanotek
The Geyser Nanotek filtration system is one of the best systems for water purification. It is very easy to place under the sink, as it is very small in size. Equipped with five stages of cleaning, including: carbon cleaning, softening, iron filtration, removal of chlorine impurities and ultrafiltration.
The system is intended for cold water only. The kit includes a filtration module, its own faucet and a storage tank.
You can install this system only if the pressure in your water supply exceeds 3 atm.
Filtration rate – 0.14 liters per minute. The cost varies from 8287 to 10200 rubles.
- filtration quality;
- good pressure;
- easy connection;
- after boiling, no scale remains on the dishes;
- nice price.
- additional purchase and installation of a pressure gauge is required;
- does not work at low pressure.
Geyser Nanotek prices:
2. New Water Expert M312
The “Expert M312” cleaner from the Novaya Voda company is a reliable system for installation under the sink. It has four levels of water purification: coal, from chlorine compounds and from metal impurities. The kit includes a filtration module and a separate faucet. There is no reservoir for storing liquid in the model.
Can be used for pipes with high water pressure, up to 45 atm.
There is no clear calendar for replacing filters, which allows you to change at your own discretion. The price for such a system ranges from 5299 to 6390 rubles.
- reliability;
- large dimensions;
- good level of filtration;
- ease of installation;
- easy to change cartridges;
- affordable price;
- long time of use of one cartridge;
- nice design.
Cons: high cost of the filtration cassette.
Prices New Water Expert M312:
The water purification system from OMOIKIRI “Pure drop 1.0” is a reliable three-stage model that is easy to install under the sink even if you have very little space. The system is designed to filter cold water.
The main advantage is the disinfection of liquids; the model has a high-quality filter element.
The kit includes one module, the resource of which is 10,000 liters of liquid. After the specified volume has flowed through the system, the filter must be replaced. The maximum filtration rate is 3 liters per minute. The cost of the model is from 6588 to 7488 rubles.
- quality of water purification;
- high filtration rate;
- compact dimensions;
- affordable price;
- ease of use;
- ease of installation.
- no tap;
- difficulties with original spare parts.
Prices :
4. Aquaphor Crystal Eco
The cleaning system from the Aquaphor “Crystal Eco” company is a simple and compact model, which, if desired and with the appropriate knowledge, can be connected even by yourself. It has three stages of filtration: carbon, ultrafiltration and purification from impurities containing chlorine. The kit includes a faucet and a filter module, which is enough for 8000 liters of water.
After the stated amount of liquid has been filtered, the cassette will have to be replaced.
Maximum filtration rate: 2.5 liters per minute. The price for such a device ranges from 2550 to 6450 rubles.
- filtration quality;
- small system size;
- no unpleasant odor of water;
- no scale after boiling;
- convenient to change cassettes;
- high installation speed.
- cost of replacement cartridges;
- inconvenient faucet.
Prices Aquaphor Crystal Eco:
If you are looking for the best filter, then take a closer look at the Geyser Bio 322 water purification system - according to many buyers, this is an excellent option for installation in an apartment. The device has three stages of filtration: softening, iron removal and removal of chlorine compounds. The kit includes a carbon filter and a special faucet. The filtration rate is 3 liters per minute.
The maximum permissible pressure in the pipeline is 7 atm.
The system itself has a transparent body and is designed for hard water. Has a disinfecting effect. The cost of such a filter is from 4960 to 7448 rubles.
- you can install it yourself;
- filtration quality;
- system reliability;
- reasonable cost;
- compactness;
- softens water.
- no storage;
- After installation, you need to drain some water.
Prices :
The EXPERT Ferrum barrier is a high-quality three-stage water filter, which is extremely difficult to find better in this price segment. The set includes an effective carbon filter that disinfects, removes chlorine and removes iron impurities from tap water. The maximum possible resource of filtered water is 10,000 liters. The filtration rate is 2 liters per minute. Designed for maximum pressure in pipes up to 7 atm. It has low weight and dimensions.
The main feature of the system is ByPass technology, which avoids excessive water softening.
The cost of the system ranges from 1620 to 4850 rubles.
- removes rust;
- affordable price;
- ease of installation;
- ease of changing cassettes;
- quality and taste of water;
- compactness;
- does not leak.
- does not filter muddy water well;
- only original cassettes;
- high cost of cartridges.
Prices :
Reverse osmosis filters (with membrane)
As for the quality of filtration, the best filters for water purification, according to buyers, are models based on reverse osmosis. Despite the fact that outwardly such systems are not much different from flow filters, reviews from those who managed to install such a system indicate its greater efficiency. As for the filtration stages, their number is the same as in flow-through models: from one to five. Six steps are less common.
The main difference between a filter based on reverse osmosis is a flow-through membrane, thanks to which cleaning is much more efficient.
Some models of such filters can be equipped with an ultraviolet lamp, which has a disinfecting effect on water.
1. New Water Expert Osmos MO530
The system from the Novaya Voda company “Expert Osmos MO 530” is a good and reliable filter for your home with four-stage filtration. The osmosis membrane is always installed in the last block of the chain. This is done so that already prepared water is supplied to it. The membrane itself becomes the last link of filtration, since only water molecules pass through it, without any impurities.
For purification, a carbon filter is used, which mineralizes the water, removes iron impurities from it, makes it soft and removes chlorine compounds. There is a water storage tank with a capacity of 6.3 liters. Filtration rate: 0.18 l/min.
For the system to operate, a water supply pressure of 2 to 19 atm is required.
The price ranges from 10,995 to 13,590 rubles.
- excellent filtration quality;
- the system does not take up much space;
- transparent reservoir for filtrate;
- ease of use;
- system strength;
- build quality.
Cons: Cost may be confusing.
Prices New Water Expert Osmos MO530:
If you are interested in the best filters with a reverse osmosis system, then Atoll “A-575 m STD” can be called one of such models. The device has a five-stage cleaning system, including: mineralization, removal of iron impurities, softening and chlorine removal. Equipped with a storage tank with a volume of 12 liters. Acceptable filtration rate: 0.135 l/minute.
For the system to operate, the pressure in the pipeline must correspond to the range from 2.8 - 6 atm.
The cost varies from 11,660 to 16,475 rubles.
- the purest water;
- no odors;
- no scale;
- quality of cartridges;
- volumetric tank for filtrate;
- high filling speed.
- cost of cassettes;
- difficulties when replacing filters.
Prices :
The filtration in such systems is of such high quality that the resulting water can be compared in quality to distillate. The filtration system from the manufacturer New Water “Osmos Stream MOD 600” will be the best solution for those who have low water pressure in the pipeline.
The model is equipped with a pump to increase the inlet pressure, so the device can operate efficiently at very low pressure, from 0.5 atm.
The filter is five-stage, the liquid in it undergoes mineralization, removal of iron, removal of chlorine and softening. Filtration rate: 1.25 liters per minute. The model has an automatic control unit. The price for such a system is from 18,399 to 26,180 rubles.
- high quality filtration;
- water pressure increases;
- ergonomics;
- long service life of filters;
- nice design;
- workmanship;
- no leaks.
- installation difficulties;
- high price.
Prices :
4. New Water Econic Osmos Stream OD310
The New Water brand model “Econic Osmos Stream OD 310” is a good solution for an apartment if you want to receive clean water in unlimited quantities. The high-quality carbon filter with which the system is equipped softens the water and removes iron and chlorine impurities.
This model does not have a storage tank, but it is equipped with a piston valve.
Filtration rate: 0.7 liters per minute. For the equipment to operate, a pipeline pressure of 2 to 8 atm is required. It is characterized by its small dimensions and low weight. The cost of the device is from 8990 to 12400 rubles.
- does not take up much space;
- reliability of design;
- reasonable cost;
- filtrate quality;
- build quality;
- long service life of cartridges;
- ease of use.
- difficulty of assembly;
- cost of replacement cassettes;
- takes a long time to filter.
Prices New Water Econic Osmos Stream OD310:
5. New Water Praktic Osmos Stream OUD600
In the line of filters from the Novaya Voda company, the Praktic Osmos Stream OUD 600 model is one of the most effective. It has as many as 6 stages of purification that soften, mineralize, and remove iron and chlorine impurities from tap water.
The system is equipped with a pump to increase pressure in the pipeline. Due to this, the filter can be connected at pressure levels from 3 to 11 atm.
Resource of one module: 50,000 liters. Maximum filtration rate: 1.25 l/min. Among the features of the model it is worth noting: an automatic control system, automatic membrane washing and indicators on the control panel. The price for such an installation ranges from 18,698 to 23,990 rubles.
- automatic washing;
- removes chlorine odor;
- does not require regular maintenance;
- large module resource;
- 6 stages of cleaning;
- filtration quality;
- efficiency;
- low noise level.
- high cost;
- complexity of the system.
Prices New Water Praktic Osmos Stream OUD600:
Another high-quality filter that can be placed under the sink is the “A – 550 MAX” model from Atoll.
The device has a 5-stage cleaning system. The carbon filter perfectly mineralizes, removes iron impurities, softens and removes chloride compounds. The kit includes a replacement filter, a faucet and a filtrate reservoir with a capacity of 8 liters. Maximum filtration rate: 0.159 l/minute.
For correct operation of the system, it is necessary to maintain the pressure in the pipeline in the range from 2.8 - 8.4 atm.
The price ranges from 16,700 to 17,200 rubles.
- filtration quality;
- ease of installation;
- no scale when boiling;
- odor is completely eliminated;
- good design;
- faucet quality;
- You don't have to change cartridges for a long time.
- inconvenient crane configuration;
- you can hear the water pouring;
- high cost of replacement parts;
- difficulty with replacement.
Prices :
Conclusion
Unfortunately, every year the tap water only gets worse. Today, many people believe that even when cooking, you should not use untreated tap water. Solving the drinking water problem at home is very easy. With the advent of under-sink filters, you no longer have to carry heavy cans from the store or wait for hours for the delivery service. The rating of the best filter systems will help you make your choice; it presents the most popular high-quality models. It doesn’t matter which system you decide to prefer, flow-through or reverse osmosis, the main thing is that it meets all your requirements.
Pure water without impurities, enriched with minerals, is the key to good health and longevity. To ensure that purified and maximally healthy water is always available in the house, it is recommended to install purification and filter systems. Our ranking of the best water purifiers 2019 will help you make your choice.
Water filtration began to be practiced at the dawn of the human era. One of the earliest purification methods, carbon filtration, has survived to this day. The Russian cleaning equipment market is rich in a choice of filters of different systems, cleaning levels, sizes and purposes. The main classification is by type of cleaning:
- mechanical filters are multi-level cleaning systems that are used to protect plumbing and household appliances from scale and dirt.
- ion exchange filters – systems for softening water hardness, operating on the basis of ion exchange resins. They filter not only iron, but also manganese, which most other systems cannot handle.
- Reverse osmosis filters are the most environmentally friendly and most efficient systems. They cope with the removal of all impurities and bacteria; before leaving, they additionally mineralize the water (optional).
- biological filters - the system works on the basis of microorganisms that purify water from organic contaminants. Used in aquariums and wastewater treatment plants.
- absorbent filters - the main cleaning component is absorbents that retain impurities (sorption process).
- aeration filters – water is purified using oxygen in special tanks.
- electric filters - purify water with ozone from all oxidized and dissolved organic and inorganic contaminants, however, they are very wasteful in energy consumption.
- filters of jug design - the design consists of a container for untreated water, a container for purified water and a carbon filter.
- cartridge filters - the design consists of several flasks, inside of which there is filter media for each type of impurity.
Choosing a water filter
The most important parameter for choosing a cleaning system is degree of water purification. Highlight:
- single-stage cleaning level (elementary) – this includes pitcher-type filters. Clean only coarse dirt;
- two- and three-stage purification level (medium) – filter large and fine contaminants;
- three-, four- and five-stage level of purification (high degree of purification) - filters from all types of contaminants.
Once you have decided on the degree of purification, you should choose filter installation type:
- filter with connection to the faucet - a special nozzle for the faucet that connects directly to the outlet of the mixer, productivity is only 0.3-0.5 l/min;
- filter with connection to the sink - a system “for the sink”, installed near the sink or on the sink, connected to the faucet mixer using a flexible hose, average productivity - 1-1.5 l/min;
- a filter with a permanent connection under the sink - an “under the sink” system, according to users, one of the best water purification systems, installed under the sink, directly connected to the water supply system, and has a second tap for purified water;
- desktop dispenser filter – the quality of water purification is not inferior to a “under-sink” filter, is not connected to the water supply system, is easy to maintain and fits harmoniously into the interior.
TOP-3 built-in filters for washing
3rd place - Aquaphor Crystal Eco H (from RUB 3,950)
Aquaphor Crystal Eco H is a budget family option with very high performance. Compact installation, four-stage cleaning system, withstands inlet temperatures up to +45°C.
Specifications:
- Dimensions: 260×350×90 mm
- Cleaning levels: 4
- Purification: ultrafiltration, carbon
- Filter resource: 8000 l
- Capacity: 2.5 l/min
- Inlet water temperature: +5+45°C
- Porosity: 0.1 µm
Extra options:
- water softening and chlorine removal;
- works on cold water;
- filtration module included;
- separate tap.
Pros:
- filters water efficiently, removing harmful salts and chlorine;
- The output is very tasty water without taste or smell;
- the filter is easy to install;
- easy to use - just open the tap;
- compact, fits under small sinks;
- filters are installed and replaced quickly;
- good water pressure;
- free maintenance and high-quality warranty service.
Minuses:
- missing: pressure pump, storage tank, filtration module replacement calendar;
- expensive replacement filters;
- after more than six months of use, the system begins to wear out;
- long regeneration procedure;
- unreliable connecting hoses connecting the filter to the mixer;
- poor quality equipment.
2nd place - Novaya Voda Praktic Osmos Stream OUD600 (from RUB 17,800)
New Water Praktic Osmos Stream OUD600 is a six-stage multifunctional filter with an osmosis-carbon cleaning system, a pressure booster pump and auto-cleaning. Withstands consistently heavy loads, users note the high quality of the build and all components.
Specifications:
- Type: under-sink cleaning system
- Cleaning levels: 6
- Filter resource: 50000 l
- Capacity: 1.25 l/min
- Inlet water temperature: +2+ 35°C
- Porosity: 1 µm
Extra options:
- water mineralization, iron removal, softening and purification from free chlorine;
- works on cold water;
- connection to water supply;
- pump for increasing pressure;
- inlet pressure – 3-11 atmospheres;
- separate tap.
Pros:
- multi-stage filtration;
- replace the filter once a year;
- compact system;
- ideally purifies water;
- works silently;
- electronic type of system control;
- high water pressure thanks to a pump to increase pressure;
- copes with the task at any water pressure;
- protection system against pressure drops;
- auto flush is activated after each use, keeping the system clean;
- undemanding to maintenance;
- high-quality assembly and durability;
- self-diagnosis function.
Minuses:
- high price.
1st place - Atoll A-575m STD (from RUB 9,600)
Atoll A-575m STD – this cleaning system received leadership in the TOP-3 for its high quality and affordable price. The kit includes a 12 liter storage tank.
Specifications:
- Type: under-sink cleaning system
- Dimensions: 430×420×150 mm
- Cleaning levels: 5
- Purification: reverse osmosis, carbon purification
- Storage capacity: 12 l
- Capacity: 0.135 l/min
- Inlet water temperature: +4+38°С
- Porosity: 1 µm
Extra options:
- mineralization, removal of metals from water, softening and removal of chlorine;
- works on cold water;
- automatic membrane washing;
- LED backlighting of indicators;
- connection to water supply;
- pump for increasing pressure;
- inlet pressure – 2.8-6 atmospheres;
- filtration module included;
- separate tap.
Pros:
- system with storage tank;
- The output water is clean, scale-free under stable daily loads;
- high quality of assembly and materials of the case and parts;
- value for money.
Minuses:
- missing: pump for increasing pressure;
- high cost of filters and consumables.
TOP 3 desktop dispenser filters
3rd place - Source Bio ER-5G (from RUB 3,700)
Bio ER-5G is a compact budget five-stage filter. The resulting water is free of impurities, clear and tasty. Suitable for a small family.
Specifications:
- Type: tabletop dispenser
- Cleaning levels: 5
- Cleaning: carbon cleaning
- Storage capacity: 5 l
- Porosity: 0.3 µm
Extra options:
- mineralization, deferrization of water, softening, purification from chlorine;
- works on cold water;
- does not connect to the water supply;
- filter module included;
- separate tap;
- transparent body.
Pros:
- filters efficiently and is easy to clean;
- strong and reliable design, easy to use (children use it without problems).
Minuses:
- missing: pump for increasing pressure, calendar for replacing the filtration module;
- low filtration rate;
- expensive components.
2nd place - Coolmart SM-101 Redox (from RUB 9,300)
This model is designed for large volumes of water and constant load. It works on five-stage carbon-magnesium filters; the filters themselves last a long time, purifying the water from harmful substances and organisms, enriching the outlet water with minerals.
Minuses:
- expensive additional equipment and consumables;
- Over time, the system begins to malfunction, sediment appears at the bottom, and filtration properties deteriorate.
1st place - Keosan KS-971 (from RUB 6,900)
Six levels of purification, carbon-magnesium filters, a 12-liter storage tank, cool and tasty output water - all this is the leader in the rating of Keosan KS-971 dispenser tabletop filters.
Minuses:- missing: pump to increase pressure in the system;
- large size (not suitable for a small kitchen).
Let's sum it up
If you need a stationary system, then under-sink filters are the most suitable option for you; If you are looking for a compact source of clean water that is independent of the water supply system (for example, for an office), you should pay attention to tabletop dispenser filters. The more contaminated, high-hardness water in your area, the more levels of filtration are needed to purify it (systems with 5-6 levels of purification); For water of average contamination and hardness, a three to four-stage filtration system will be sufficient.Updated: August 2019
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In today's polluted environment, it is recommended to install a special water filter under the sink in every home. Depending on the type of cleaning, it will help rid the water of sand, lime, soda deposits, and also filter it from metals.
To help you choose a device for your home, we have prepared a rating of the most popular models that will provide your family with high-quality and tasty water. Each sink water filter has features that are suitable for a specific type of tap water.
Do you use a water filter?
YesNo, the water is clean
The question of which is the best water filter for washing often arises in families with children. A small body needs to receive clean and healthy water from an early age, and the quality of tap water leaves much to be desired. In order not to get confused in the store in front of a large assortment, we suggest considering several basic selection criteria:
- Incoming pressure. When choosing a filter, you should pay attention to the type of water connection. When connected to a centralized water supply, the pressure must be at least 2.5 atm - this will ensure normal functioning of the device. If the connection is made to an autonomous water supply and the pressure does not exceed 2.5 atm, it is worth taking a closer look at models with reverse osmosis - they are equipped with a pump.
- Performance. It is calculated based on the number of people in the house and the volume of water consumed during peak loads. When choosing a filtration system for an apartment, you should independently calculate the volume of water consumed during busy hours.
- Dimensions. The top filter tap will be installed on the sink, so it is important to consider its size and shape before purchasing. Most often, filters for round and oval sinks are offered for sale.
- Types of cartridges. When purchasing a filter, several different cartridges already come with it, but during gradual cleaning they need to be replaced. Today the range is represented by the following cartridges: antibacterial, against metal impurities, against mechanical impurities, universal and for hard water.
Having understood the main selection criteria, you can safely move on to studying our rating of household filters for washing.
The best water filters
Our top six is opened by a model from the Aquaphor brand. The rating of manufacturers indicates that this company has long established itself on the positive side in the market of water purification devices. Trio Fe is a high-flow drinking water filter designed for under-sink installation. The model comes with 3 cartridges: they purify water from metals, chlorine impurities, and pesticides.
Externally, the model has standard dimensions - 33.2 x 10.5 x 29.6 cm, so it can be easily mounted under the sink. The filtration rate is 2.5 liters per minute, which is just right for a family of 3-4 people. The resource of this filter is 7 thousand liters, and the cartridges need to be changed once a year. The water temperature with which Trio Fe works is from +5 to +38 degrees.
- Good price-quality ratio;
- Easy installation;
- Easy replacement of modules;
- Change in the taste of water for the better.
- Inconvenient tap for water supply.
Alla, 38 years old
I live in an industrial region, and our water is heavily polluted with heavy metals. Previously, we saved ourselves with a filter jug, but then we bought Trio Fe, which has three degrees of purification. The water immediately tasted good, after brewing tea there are no traces left on the mug - I like everything.
The Novaya Voda company is in fifth place in our top list of filters for cleaning water under the sink. This is a manufacturer from Russia, characterized by the manufacture of reverse osmosis units. The model comes with a special water tank; it is mounted under the sink. The reverse osmosis filter can only be used for cold water; its operating pressure ranges from 0.2 to 0.8 MPa.
Reference! During reverse osmosis filtration, water passes through a membrane, and the substances in it dissolve and become less concentrated.
The filtration rate reaches up to 270 liters per day. The device has a water mineralization function; the system contains 4 stages of purification: mechanical, activated carbon, highly selective membrane and a mixture of partially soluble minerals.
- Compactness;
- Stylish design;
- Easy to install;
- Transparency.
- High price.
Elena, 52 years old
My husband independently installed a reverse osmosis filter from Novaya Voda in just half an hour. The device is thought out to the smallest detail, and most importantly, it is compact and fits perfectly under the sink. The tank fills with water in 30-40 minutes; after filtration, the water becomes so tasty that you want to drink it all the time.
Another purification option using reverse osmosis is presented by the Atoll company. The model called A-550m is a combination of high performance with 5 stages of water purification. The liquid goes through several filtration phases before reaching the consumer: purification from free chlorine, iron removal, reverse osmosis, softening and mineralization.
This product takes fourth place in the rating of water filters for washing thanks to its 12-liter storage tank, convenient separate tap, and good performance. The inlet pressure is 2.8 - 6 atm, and the filter can work with water at temperatures from +4 to + 38 degrees, which means it is possible to filter hot water.
- Components from foreign manufacturers;
- Conducting filter tests before sale;
- High-strength propylene flasks made in Japan;
- Smooth unscrewing of the flasks;
- Resistance to pressure surges in the water supply system.
- A large number of connections in the system;
- High cost of replacement modules.
Denis, 33 years old
I lead a healthy lifestyle and go to the gym. Drinking for me is one of the mandatory points on the path to proper nutrition and a beautiful body. To avoid buying bottled water, I installed this filter. Previously, I didn’t understand why people install a reverse osmosis system when they can buy a regular filter cheaper. Now I feel the difference - the water is like from a spring.
(function(w, d, n, s, t) ( w[n] = w[n] || ; w[n].push(function() ( Ya.Context.AdvManager.render(( blockId: "R-A -345261-7", renderTo: "yandex_rtb_R-A-345261-7", async: true )); )); t = d.getElementsByTagName("script"); s = d.createElement("script"); s .type = "text/javascript"; s.src = "//an.yandex.ru/system/context.js"; s.async = true; t.parentNode.insertBefore(s, t); ))(this , this.document, "yandexContextAsyncCallbacks");The five-stage reverse osmosis purification system from Ecosoft is in third place in our rating. What's special about it and why did this particular model take third place? Firstly, the cost of this system is 2 times lower than the price of the previously discussed reverse osmosis filters. Secondly, all the necessary functions for water filtration are present here.
Advice! The essence of reverse osmosis purification is passing water through a membrane. At the same time, it allows only liquid molecules and dissolved oxygen to pass through.
The popular rating put the ECOSOFT MO 5-50 model in third position due to its high productivity - 190 liters per day, good storage tank volume - 7 liters, and compact installation. The weight of the system is 6 kg, and there will be no problems with installation - everything can be done according to the instructions. The model is equipped with 5 cartridges: removal of sand and mechanical impurities, removal of chlorine, fine water purification, membrane element and postcarbon.
- Compactness;
- High-quality assembly;
- Ceramic faucet;
- Fittings made in England
- High cost of consumables.
Anton, 27 years old
I assembled and installed the filter myself, it was not difficult. I like the fact that the hoses of the system are flexible, all the gaskets are of high quality, and I haven’t found a single leak in 2 years. What about the water – it’s wonderful. Tasty, full of benefits, you can drink it for days.
This model would be on the first line in the rating of flow-through water filters for washing. This filter is not afraid of leaks due to increased water pressure in the system, because each flask is equipped with high-quality silicone gaskets. You can connect the filter in a matter of minutes, and changing cartridges will take very little time. The product body is equipped with a special button that relieves the pressure level in the system in emergency situations.
The model’s body is transparent - this allows you to know exactly when it is necessary to change the filter cartridges. The device includes a separate tap, bracket, flasks, and a set of cartridges. It consists of the following cleaners: mechanical cleaning, disinfection and conditioning, as well as a carbon cartridge to eliminate small particles.