The quality of our tap water, to put it mildly, is far from international standards. You must admit that drinking untreated tap water is an extreme activity that can result in serious health problems. Therefore, the purchase of a good filter is a priority.
If you do not like to risk your health, then you are probably thinking about how to choose water filters. A variety of offers on the market will make even the most daring be taken aback.
We will help you put everything in its place and make a choice - this article discusses the existing types of filtering devices and their characteristics.
It also lists the main criteria that influence the choice of the most suitable filter, and the rating of the best manufacturers both domestic and foreign. For a better perception of information, visual diagrams and photo materials, expert video recommendations of choice have been selected.
Varieties of filters by design
There are several main varieties of household water filters.
To make a choice, it is better to study in detail the principle of work, the advantages and disadvantages of each type, so as not to get lost in the variety of offers.
Water filters, offered by the modern market, are represented by a wide range of devices and devices that differ in the principle of action, degree and speed of cleaning
View # 1 - a jug for clean water
The simplest type of filter for drinking water is jug. It looks very simple, the name speaks for itself. The filter is a plastic vessel in the shape of a jug.
A replaceable cartridge is installed in a special hole. It purifies water from impurities in ways that combine mechanical, chemical, and less commonly biological treatment.
To understand the principle of operation of the filter jug, you need to consider its "heart" - a replaceable cartridge in a section.
His interiors can be very diverse, it all depends on the manufacturer, but the technology is always the same. Water enters the filter from above, sequentially goes through all levels of purification and enters the jug's bowl.
These components in various combinations are the basis of all household filter jugs. Depending on the layout, they are able to retain organic inclusions, mineral impurities, protect against bacteria
What filtering substances can be in your filter jug:
- Activated carbon. The most common component. Due to the high level of adsorption, almost all harmful organic impurities are removed from the water;
- Zeolite. It is found very often in filters. Eliminates ammonia and other organic compounds;
- Shungite. Add to the cartridge to remove chlorine and its residues from water;
- Ion exchange resin. Softening, used in cartridges marked "for hard water";
- Anti bactericidal additives. Most often, based on silver ions - they are used to prevent the growth and reproduction of bacteria, algae and other undesirable living creatures inside the cartridge during its use.
The main advantages of pitcher category water purifiers are compactness and mobility. They can be transported and transported wherever you want, left on the table, placed in the kitchen cabinet, but at least in the refrigerator.
A significant plus - ease of use: poured, waited, ready. Attractive price compares with other types of filters.
Among the shortcomings, the average quality of treatment is distinguished - it all depends on the initial quality of tap water. Frequent cartridge replacement and small volume are not happy.
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Non-volatile simple device
Constructive similarity of all brands
Dual Cartridge Water Filter
Domestic Products
Cartridges for various degrees of cleaning
Filter clogging indicator on the jug lid
View # 2 - flow-through filter options
In the series of devices for mechanical purification of water, flowing varieties are leading.
There are several options for implementing this method:
- desktop;
- in the form of nozzles on the crane;
- under the sink and onto the highway.
Desktop - The easiest option to use. The cleaning system is a replaceable cartridge in a plastic case.
On the one hand there is a tap for purified water, on the other - a flexible hose connecting the filter with a water tap.
You can collect several containers and always have a couple of liters in stock, and you can filter the water as needed
To clean tap water, a nozzle is put on the tap and a low pressure is turned on. After passing all levels of cleaning, ready-to-use water flows out of the filter.
Filter nozzle for crane - The same technology, but in a different design. Manufacturers simply reduced the distance between the cartridge and the spout of the mixer.
The filter nozzle has a universal mount and can be installed on the mixer with either an external thread or an internal one. The obvious advantage is that it does not take up space. Installing a nozzle is as simple as a desktop model - you can do without calling a plumber.
Filter system under the sink - The most radical method among flow filters.
Installation requires free space directly under the sink and space for the output of a separate tap from above. Such a filter is connected directly to the water pipes, and then to the mixer.
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Filters consisting of several modules produce several degrees of purification, eliminating harmful and preserving useful inclusions
The filter system includes several filtering devices, subdivided by the pore size of the filter material
The simplest version of the cleaning system includes filters that hold insoluble soil particles, grains of sand, and rust. In systems for hard water, usually 3 modules, with a softener
For installation in a plumbing supplying water, two modules with microfilters holding sand grains and rust flakes are enough
If ultrafilters are also included in the water purification system, then it eliminates microorganisms and the smallest organics dissolved in water
Filters cut into autonomous water supply systems in highways, they are used to protect equipment from abrasive mineral and clogging organic impurities
Filters installed on the pipeline carry out rough mechanical cleaning, retain small particles insoluble in water
One of the most difficult, but promising cleaning methods is the electromechanical effect on the pumped medium. This destroys metal salts, harmful substances, bacteria, viruses
Modular filter for water treatment
Filters for multi-stage cleaning
Modular system for hard water
Set of filters for soft water
Increased degree of purification
Filters in autonomous water supply
Main filtering device in operation
Electromechanical cleaning method
The modular filtration system is a console with plastic flasks. They are installed in the direction of movement of water in accordance with the degree of purification.
The first is mechanical filtration with retention of large mineral and organic inclusions. Next, the water passes through the modules conducting sorption, softening, deferrization.
In addition to large dimensions, this option does not have significant shortcomings. The degree of purification, of course, does not reach the more expensive reverse osmosis systems, but it is quite suitable for domestic use.
For water purification in a private house, it is better to choose a modular filter system with a membrane tank that allows you to create a supply of clean drinking water and maintain pressure in the system
View # 3 - upgraded ultrafilter clarification
Despite the loud name, the ultrafilter is a type of flowing device located under the sink. It also consists of several series-connected flow modules with different characteristics.
In fact, the ultrafilter is a cross between a conventional flow system and a reverse osmosis system.
The main difference between the ultrafilter is the presence of a special finely porous membrane located in the cartridge of the fine filter. The size of the holes is from 0.1 to 0.01 microns.
Water enters the membrane after passing through all stages of mechanical cleaning: coal, polypropylene, etc. The pore size of the membrane is so small that even some bacteria and viruses do not pass, not to mention large particles.
An ultrafilter disinfects water without changing its chemical structure and mineral composition, which occurs during boiling, for example
An ultrafilter disinfects water without changing its chemical structure and mineral composition, which occurs during boiling, for example.
View # 4 - reverse osmosis system
The reverse osmosis system is by far the most advanced method of purifying tap water. The system includes mechanical filters for preliminary cleaning of sand, rust, organic compounds, chlorine, ammonia.
This is followed by a membrane with pores of 0.0001 μm, filtering water at the molecular level. After membrane cleaning, the filtered water enters a special tank, and all harmful impurities are discharged into the sewer.
Reverse osmosis plants conduct the finest purification of water at the molecular level. Excellent retention of salts of heavy metals, organic matter, do not pass microorganisms
The system design is quite complex, at the request of the customer it can be equipped with additional components:
- pump - at low inlet pressure;
- pressure reduction gear - if the pressure is too high;
- tourmaline cartridge - to restore the structure of water;
- increased water capacity - for apartments with high consumption;
- mineralizer - enriches water with calcium, magnesium, sodium;
- ultraviolet block - control sterilization of water.
The disadvantage of reverse osmosis systems is considered volatility and the need to maintain a stable pressure.
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The degree of purification of water produced by reverse osmosis plants allows water to be consumed without prior boiling
The reverse osmosis system includes microfilters and ultrafilters based on semipermeable cellulose acetate or thin-film membranes
Reverse osmosis systems are delivered with a separate tap through which purified water is supplied
Since the reverse osmosis installation finely purifies and disinfects the water, it can be stored in a storage tank, which is included in the system’s package.
Despite the seeming complexity of the system, an inexperienced performer who has no previous idea of the specifics of work can cope with its installation and connection
To simplify and speed up the installation work, circuits are attached to the products, the filters are numbered. The numbering should be strictly observed, as it matches the cleaning sequence
Cartridges in the reverse osmosis system modules are changed by analogy with other filtering systems. Plant manufacturers produce them in abundance
When replacing, connecting and operating a reverse osmosis system, it is necessary to strictly follow the manufacturer's recommendations. Otherwise, in the event of an unexpected breakdown, it will not be possible to change or return it.
The use of reverse osmosis
Accessories for water treatment
Structural parts of the installation
Storage tank in the system
Assembly of a water treatment plant
Component Sequence
Reverse Osmosis Cartridge Replacement
Assembly of the unit as recommended by the manufacturer
Our site also has other materials about reverse osmosis systems, we suggest you familiarize yourself with:
- How to choose a reverse osmosis filter: ranking of the best manufacturers and their products
- How reverse osmosis works: the principle of operation of fine water purification devices
- Reverse osmosis: the harm and benefits of membrane purification of tap water
- DIY reverse osmosis: step-by-step assembly and installation instructions
Criteria for choosing a good filter
How to understand which of all water filters is better? When choosing a filter for home use or for a summer residence, it is important to pay attention to several important criteria.
To understand which one is right for you, consider:
- average water consumption;
- degree of purification;
- availability of free space in the kitchen;
- Estimated purchase budget.
First of all, water consumption is taken into account. It depends on the number of people living in the apartment.
Criterion # 1 - daily water consumption
It is recommended to drink about 2 liters of water daily. Add to this amount 1 liter in the form of soup, tea and coffee, which are also best prepared with filtered water, and get an approximate rate of 3 liters of water per adult per day.
Using simple calculations, you can derive a monthly consumption rate for a family of three:
3 pax * 3 l / day * 30 days = 270 l.
By comparing the figures obtained with the declared resource and filter performance, you can choose the right model.
Given that the average cartridge life for a jug is 250-300 liters, a family of three will have to change it every month. This is not very rational. It is better to buy a jug as a temporary portable filter, for example, for travel or for a summer residence.
Family water consumption depends on the number of active people. On average 3 to 4 liters are put per person, including cooking
Consider the same family of three people who, according to our estimates, consume 270 liters of purified water per month.
After examining the market, we see that the cartridge yield for the reverse osmosis system is 3-6 thousand liters. About the same picture with sorption flow filters - 3.5-8 thousand liters.
We consider:
- Min. 3000 L: 270 L / month = 11 months
- Max. 8000 L: 270 L / month = 30 months
However, manufacturers do not recommend using the same cartridge system for more than a year or less. For a family of 3 people, any of the filters for washing is suitable. Moreover, it makes no sense to buy a filter with a larger resource of consumption - it is unlikely that it will be possible to use all 8000 liters per year.
Criterion # 2 - water quality without filter
What just doesn’t come to our apartments under the guise of tap water: sand, rust, algae, fungi, ammonia, hydrogen sulfide, all kinds of salts, acids and bases - the list goes on.
Therefore, it is advisable to see the original picture before buying a filter.
You will not find out on your own, unless you have your own mini-laboratory and you are a chemist. The rest will have to collect water for examination. You can go to the sanitary and epidemiological station and take samples for analysis. Faster, but more expensive - private laboratories.
At the conclusion of the examination you will see a large number of important indicators: acid-base balance, hardness, transparency, color, smell, radiation background, the presence of organic matter, chlorine, iron, fluorine and other data
One of the key indicators is rigidity. It's no secret that our tap water is very hard. But how much? In the laboratory you will be given the exact value in mEq. If it is within 8, then the installation of a flow filter is allowed.
But such a system is unlikely to cope with very hard water - 8-12 + mEq.With this level of rigidity, only a reverse osmosis system is suitable, which simply does not let the molecules of hardness salts pass through the membrane.
Another direct indication for installing a reverse osmosis filter is the presence of organic matter in water.
Fungi, bacteria, viruses, even the simplest multicellular microorganisms - none of the above will get into your glass after passing through the membrane and final cleaning with ultraviolet light.
Criterion # 3 - free space and price
The availability of free space - everything is clear here. Not every kitchen has space for a large “under the sink” system, while the extra 15 cm2 for a jug on the table you can always arrange.
Often, filter selection is limited to a financial issue.
Arrange the filters in order of increasing cost:
- Pitcher - the average price is $ 10-12.
- Nozzle on the crane - $ 12-15.
- Desktop flowing - $ 22-25.
- Flow system for washing $ 60-80.
- Flowing filter with a membrane - ultrafilter - $ 80-85.
- The reverse osmosis system in different trim levels - $ 180-200.
An important nuance is the quality of the parts. All connecting elements must be of proper quality.
Cheap plastic will not last long, so it’s advisable to twist all the details in your hands before buying
Criterion # 4 — Filter Maintenance Required
Buying and installing a filter is not all. It must be constantly looked after.
Some systems are designed in such a way that for full operation you do not need to contact the masters, everything is easily replaced and installed with your own hands in a few minutes.
Sophisticated models of filtering equipment require in-depth skills and require professional installation supervision and maintenance
The list of mandatory regular procedures includes:
- replacement of mechanical cleaning cartridges (for any filter - after the consumption of the declared amount of water or after the expiration of the useful life);
- reverse osmosis membrane replacement or in an ultrafilter (the period depends on the quality of water and the mode of use, on average - once every 1.5 years);
- membrane flushing (if it is to be chemically reduced, then it is much cheaper to rinse it than to change it);
- flushing valve and its prevention;
- refilling filters (replacement of cartridge fillers, iron removers, softeners);
- softener recovery chemicals (if any).
There are operations that can only be performed by an experienced master. For example, if you decide to install some additional elements to your reverse osmosis system, like a UV cleaner.
Rating of the best manufacturers
To make your task a little easier, we offer you a rating of the most popular (and for good reason) manufacturers of water filters. Perhaps this will narrow your search.
At least, most filter buyers opted for these brands.
No. 1 - filter for washing IKAR
Development of the Russian company SIC “IKAR”, which is a manufacturer of plants for the production of top-quality drinking water. The IKAR filter rightfully takes technological leadership in the market of household water treatment.
The filter is equipped with a microprocessor control unit and tracking the output parameters of water: level of mineralization; reverse osmosis membrane contamination control; water activation power (ORP change); pH increase level.
The ICAR filter is mounted under the sink and consists of:
- 5 step premium reverse osmosis system - the degree of water purification is the highest among competitors (~ 98%) according to WHO criteria.
- The patented SIC “Icarus” module, which activates very fresh water, structures and gives it a negative redox potential (ORP) an average of -300. In this case, the ionization of water lasts from 3-7 days in a storage tank. Water enhances immunity and has antioxidant properties.
- The mineralization unit built into the module works automatically in a dosed manner by the injection method, which ensures the saturation of water with useful substances: K +, Ca ++, Mg ++, Se ++, Iodine ions. Mineralization is carried out using the mineral supplement “Severyanka plus” No. 4. Additive consumption is calculated on average per year of use.
The system has a low power consumption of 50 watts. The prime cost of the received water of the highest quality - 3 rubles / l. Also, SIC “IKAR” has developed a pH reactor to raise the pH of water to values of 7.5 - 8.5, since the water comes out through osmosis with a low value of about one from the pH of the input water, it is purchased separately.
It is believed that the use of water with such pH values increases the overall life expectancy and allows you to maintain the acid-base balance of the body. The unique patented ICAR filter technology has been awarded prestigious international awards in Switzerland and Belgium. The installation has no analogues in the world, the technology allows you to get clean, tasty and healthy water at home.
The largest dealer of IKAR installations is home-spring.rf. Delivery is carried out in Russia and around the world. Any discounts are constantly valid. Installation services are provided in Moscow, Moscow Region and St. Petersburg.
Among the disadvantages of the installation are the following: at first glance, the high cost of the system compared to filters of a lower class, it is also necessary to replace replaceable reverse osmosis filter cartridges at least once a year (as in any other filter), once a year to buy the mineral supplement “Severyanka” plus ”(cost about 1 TR). However, the output is water, which is comparable in properties to the water from Lake Baikal and its cost is 3 p. for 1 liter.
No. 2 - Russian Aquaphor, aka Aquaphor
The well-known Russian brand Akvafor produces all of the above types of water filters. In principle, this manufacturer can satisfy every customer, there are offers for any budget.
AQUAFOR is a manufacturer of a wide range of efficient filtration systems that have earned a reputation for reliable equipment (+)
Cartridges for jugs Aquaphor can be purchased not only in specialized stores, but also in many large supermarkets. This is very convenient, since they will have to be changed with enviable regularity.
In the rating of filters of the “jug” type for water purification of the Aquaphor brand, 3 popular models can be distinguished:
- Aquaphor Ocean;
- Aquaphor Prestige;
- Aquaphor Premium.
Flowing filters Aquaphor are presented in a wide assortment. As a filtering filler, an innovative development of the manufacturer Aquaphor, the Aqualen substance, is used.
This material is a variation of the polypropylene filter patented by this trademark. Aquaphor offers flow filters with collapsible cartridges (you can add or change the filler) and collapsible (changes completely).
Aquaphor is one of the few manufacturers that manufacture and offer a flow-through cleaning nozzle for a crane
Top flow models:
- Aquaphor Trio;
- Aquaphor Crystal;
- Aquafor Favorite.
Aquaphor reverse osmosis systems are also very popular in our market due to their good quality, the availability of consumables and components and an affordable price.
The main element of the system - the membrane - is produced in China and Taiwan. This is considered a disadvantage of such filters. Reverse osmosis systems are represented by different versions of the filter Aquaphor OSMO and Morion.
No. 3 - domestic development Barrier
Like its main competitor, Aquaphor, the Barrier offers both filter jugs and simple desktop flow devices, as well as more complex flow systems and even reverse osmosis filters.
Popular jugs are easy to find in city supermarkets, cartridges for them are sold in many stores. Since Barrier consumables are suitable only for filters from this manufacturer, it is quite convenient. Pitchers themselves differ only in their design.
Another popular mass market brand is the Russian Barrier. Among the trade offers of a device for the preparation of technical and drinking water
Popular models:
- Barrier Extra;
- Barrier Smart;
- Barrier Grand.
The line of flow-through filters is very widely represented. Depending on the type of your water, you can choose the right offer.
For example, with a high iron content they buy a system with Ferrostop technology, and with high rigidity - with a softening cartridge.
The barrier proudly names all the technologies used: if connected to the water supply, then "QuickFitting"if the carbon filter - then Carbon Blockif part of the water goes past the cartridge, then this is already "ByPass".
Reverse osmosis systems from this manufacturer have appeared on the market relatively recently. A 100 gallon membrane produced in Russia is used.
There is an unusual model - K-OSMOS. Its uniqueness is that all flasks and other elements are in a stylish translucent case, and not in the public domain, like most other manufacturers.
Among the other assortment of TM Barrier, very interesting positions are presented, such as a children's filter, a shower filter (important for bathing children), a filter status sensor.
The most popular models of flow filters Barrier:
- Barrier Expert;
- Barrier Standard;
- Barrier Profi.
Reverse osmosis systems are called Barrier Profs OSMO, SPACE, Barrier WaterFort Osmo.
No. 4 - inexpensive Taiwan Aqualine
Taiwanese manufacturer Aqualine specializes in reverse osmosis systems as well as flow filtration systems.
The high quality of all components and the operation of the entire system allowed Aqualine to occupy a rather large niche in the market of filter manufacturers.
One of the most popular reverse osmosis filters is Aqualine, which purify tap water from chlorine, manganese, and iron.
One of the features of these filters is that the first filter bulb is not made of ordinary white plastic, which we are used to seeing at other companies, but of durable transparent.
Why is this done? For the convenience of service. Through the transparent walls it is visible when it is time to change the filler of the cartridges.
Flasks are easy to install on the system Quick connect. It is possible to install a mineralizer after the membrane to restore water. The membrane is used in Korea.
High quality double rubber flasks prevents leakage. The devices use a unique filtering material that softens water, neutralizes viruses and bacteria.
Models: Aqualine standart - flowing under a sink; Aqualine RO-6 - reverse osmosis; Aqualine RO-5 - reverse osmosis.
No. 5 - South Korean Raifil (Raifil)
Another popular brand is Raifil. This company began its production activities in the early 00s and focused primarily on the South Korean market.
A plant for the production of components and fillers is located in Taiwan, but the company works closely with South Korean firm S.S.K.
In addition to household models, Raifil also produces large, industrial units for water purification by reverse osmosis
One of the advantages of Raifil is that they do not use widespread Chinese membranes, preferring Korean and American models. Raifil offers some of the best water purification filters among reverse osmosis and ultrafiltration systems.
The advantages of this company’s filters are high quality plastic, double o-ring, stiffeners along the length of all flasks, and Teflon tape in the kit - for better fixation.
Reverse osmosis systems are equipped with high performance pumps. Universal flasks used, if desired, you can install flasks of any other manufacturer.
Like many other manufacturers, Raiffeil placed all the flasks of his filters on a mounting metal plate to protect against damage and ease of installation.
Raifil offers ultrafilters called Raifil Novo and reverse osmosis filters Raifil RO in different designs.
The video provides an overview of the most “running” model of Aqualine filters:
You can install the filter under the sink with your own hands, if these hands grow "where necessary." Here is a step-by-step instruction:
From the choice of water filters in specialized stores, your eyes run wide. With such an assortment, choosing a good quality model for reasonable money is a very feasible task. Responsibly approach the purchase and drink only clean water!
Are you looking for an effective water filter or have experience using such installations? Please leave comments on the article and impressions about the use of water filters.