System reverse osmosis constantly drains water into the sewer.
Check if this is really the case. Shut off the water supply to the tank. In order to close the water tank, climb under the sink and close the lever on the tap (blue) at a right angle (90 degrees) to the water flow (hose). If after 30 min. the water is still discharged into the drain, it's either in pressure, or in the reverse osmosis membrane, or in the valve after the reverse osmosis membrane, or in a four-way valve.
Close the tank and open the tap on the sink. Reverse osmosis should purify water bypassing the tank. If the flow of purified water is small, about the size of a trickle as thick as a pen shaft, the membrane works normally.
Check the outlet water pressure just before the RO membrane. If the pressure is more than 6 atm. wait until the water supply pressure of your home has equalized, or install a pressure reducer. The cost of a reducer that equalizes pressure from 250 UAH. up to UAH 350 depending on the country of manufacture. For the operation of the reverse osmosis system, a pressure of 3 - 4 atm is required. If the water pressure is less than 3 atm, install a pump, the cost of a pump set is from 1500 to 2000 UAH.
Check the four-way valve, it should shut off the water supply to the system after a few minutes, with the tap on the storage tank closed. If it does not overlap, replace the four-way valve (cost 69 UAH).
If the check valve is faulty, the tank with purified water is full, but the discharge of water into the drainage does not stop. Replace check valve(cost 45 UAH).
Bad taste of water after the reverse osmosis system. If the water after cleaning with a reverse osmosis filter has a taste, then the matter is most likely in stagnation of water. Complaints about the bad taste of water after additional upper cartridges of a mineralizer or bioceramic cartridge are not connected with the fact that these filters bring something into the water, but with improper operation of the water filter. The water treatment cartridges contain up to three glasses of water. This water, like the water stored in the tank, must not stagnate. To eliminate foreign taste and odor, you must either use a mineralizer (bioceramic cartridge) every day, or drain the first few glasses of water.
If all the water after the filter has unusual smell or taste(from both tap wings, or in cases where the mineralizer is not installed), the water stagnates not in the filter cartridges, but in the water tank. Here the most common cause of the problem is the missed period for replacing the post-coal cartridge (once a year), or incomplete use of the tank (accumulator) resource. If you cannot fully use its volume during the operation of the filter (tanks are available with a capacity of 15 liters - 12 liters, 11 liters - 8 liters and 8 liters - 6 liters), it becomes necessary to artificially renew the water in the tank once a month. You can turn off the tap in front of the filter and gradually use the excess purified water, you can collect a large container or simply drain all the water from the tank into the sewer. If the filter will be used by 1-2 people, the smallest tank (8L) is recommended during installation.
Low head from the tap in the reverse osmosis system... The low pressure from the tap of the water filter is most likely due to improper operation of the tank. The rate of water purification by a reverse osmosis filter is small. You can think of it as a trickle as thick as the shaft of a pen. In order to immediately be able to pick up a large vessel or at least a glass, a storage tank (hydraulic accumulator) is provided in reverse osmosis systems. If water does not flow into the tank, the filter is idle. When you open the tap, water sprinkles and immediately flows in a trickle. If nothing interferes with the flow of water into the tank (the pipes are not pinched and the tap on the tank is open), then the problem is in the improper operation of the tank.
The tank is empty and no water flows into it... Open the tap on the tank by turning the lever on the tap (blue) parallel to the water flow (hose). Check the inlet water pressure just before the reverse osmosis membrane. If the pressure is less than 3 atm. wait until the water supply pressure of your home is equalized, or install a pump. The cost of a pump set that increases pressure for a water purification filter is from UAH 1,500. up to UAH 2000 depending on the country of manufacture.
The tank is full and no water comes out. Open the tap on the tank by turning the lever on the tap (blue) parallel to the water flow (hose). If the tap on the tank is open and there is no mechanical blockage of the flow of water, which should be drawn in and out of the tank, it is a matter of the internal pressure of the water tank. If the tank was initially working and it was not exposed to any external influence, it is necessary to increase the internal pressure of the water tank. Unscrew the cap on the side of the tank. Under the cap there is a conventional nipple for pumping air, the same as on the tires of a car or bicycle. Pump up with a pump to a level of 0.5 - 1.0 atm. If the water tank still does not draw or dispense water, replace the tank. The cost of an iron water tank of 8 liters is 570 UAH.
Reverse osmosis system slowly picking up water... Open the tap on the sink. If the flow of water is small, about the thickness of a pen rod, reverse osmosis works fine. Check the degree of contamination of the pre-filter water cartridges by appearance if you have transparent flasks, or unscrew the flasks and check the degree of contamination directly. If, due to the service life, or the deterioration of the quality of the water supplied to the reverse osmosis, the pre-treatment cartridges are out of order, replace them. Check the inlet water pressure just before the reverse osmosis membrane. If the pressure is less than 3 atm., Wait until the water supply pressure of your house is equalized, or install a pump. The cost of a pump that increases pressure is 1500-2000 UAH. Press the ring onto the fitting in front of the post-coal cartridge and pull the hose out. If the flow of purified water is as thick as the handle rod, then there is a mechanical blockage on the way from the reverse osmosis membrane to the tap. Check all connections of the water filter downstream of the membrane step by step. If the flow of purified water occurs drop by drop, then the reverse osmosis membrane, due to the service life, or the deterioration of the quality of the water entering it, is out of order. The cost of a reverse osmosis membrane is from UAH 350. up to UAH 700 depending on the speed of cleaning the reverse osmosis membrane.
The correct operation of a reverse osmosis system as well as its performance depends on several variables:
So, for example, with a deterioration in the quality of the incoming water (high total mineralization of more than 500 ppm) and a decrease in its temperature (in winter water in the water supply system is less than 15 ° C) for the effective operation of the reverse osmosis system, an inlet pressure of at least 4 atm is required. At lower pressures, a pressure boosting pump kit must be installed.
Total mineralization 500 ppm, temperature 15 ° C, pressure 3 atm - THE SYSTEM WORKS EFFICIENTLY.
Total mineralization> 500 ppm, temperature<15 °C, давление 3 атм - THE SYSTEM DOES NOT OPERATE EFFICIENTLY.
Total mineralization> 500 ppm, temperature<15 °C, давление >4 atm - THE SYSTEM WORKS EFFICIENTLY.
Below are the common causes of malfunctions and how to fix them.
To make sure of this, you must first close the tank - turn the lever under the sink 90 degrees in relation to the pipe. If after half an hour the water also goes into the drainage, you need to look for the reasons:
The most common cause is stagnant water in the cleaning cartridges or in the tank itself. In the first case, it is necessary to drain about 1 liter of water before use, or use the bioceramic cartridge daily.
If the taste of the water is still unpleasant, then the water is stagnant in the tank. An urgent need to replace the post-carbon cardridge. Or completely renew the water in the tank, which must be done monthly. In general, it is worth calculating the estimated water consumption - an 8 liter tank is enough for two people.
Perhaps this is due to the operation of the tank itself, because the cleaning system is slow and a tank is needed for a large amount. If there is no water in the tank, the reverse osmosis water filter is wasted. It should be checked if there are any obstacles to the water supply to the tank, fully open the tap to it. If everything is normal, then the tank itself is faulty.
This could be due to pressure that can be increased with a pump.
It is necessary to check the serviceability of all taps - if everything is in order, then the pressure inside the tank is too low. Outside, on the side of the tank itself, there is a cap, under it is a nipple for air supply. In this way, you can pump up the pressure to 1 atmosphere.
Main reasons:
For the prevention of system malfunctions before installation, important aspects must be considered:
Currently, reverse osmosis filters are becoming more and more popular among consumers. In such filters there is a special membrane, and the movement of water through it from a more concentrated solution in the direction of a less concentrated one.
The reverse osmosis process, as a method of water purification, has been used since the early 60s. It was originally used for the desalination of seawater. Today, according to the principle of reverse osmosis, hundreds of thousands of tons of drinking water per day are produced in the world.
Advances in technology have made it possible to use reverse osmosis systems at home. Thousands of such systems have already been installed in the world. The water obtained by reverse osmosis has a unique degree of purification. According to its properties, it is close to the melt water of glaciers, which is recognized as the most environmentally friendly and beneficial for humans.
The phenomenon of osmosis underlies the metabolism of all living organisms. Thanks to him, nutrients enter each living cell and, on the contrary, toxins are removed.
The osmosis phenomenon occurs when two brine solutions of different concentrations are separated by a semi-permeable membrane.
This membrane allows molecules and ions of a certain size to pass through, but serves as a barrier to substances with larger molecules. Thus, water molecules are able to penetrate the membrane, but molecules of salts dissolved in water are not.
If on opposite sides of the semipermeable membrane there are saline solutions with different concentrations, water molecules will move through the membrane from a weakly concentrated solution to a more concentrated one, causing an increase in the liquid level in the latter. Due to the phenomenon of osmosis, the process of water penetration through the membrane is observed even when both solutions are under the same external pressure.
The difference in height between the levels of two solutions of different concentration is proportional to the force by which the water passes through the membrane. This force is called osmotic pressure.
In the case when an external pressure exceeding the osmotic pressure acts on a solution with a higher concentration, water molecules will begin to move through the semipermeable membrane in the opposite direction, that is, from a more concentrated solution to a less concentrated one.
This process is called reverse osmosis. All reverse osmosis membranes work according to this principle.
In the process of reverse osmosis, water and substances dissolved in it are separated at the molecular level, while almost perfectly pure water accumulates on one side of the membrane, and all impurities remain on the other side of it. Thus, reverse osmosis provides a much higher degree of purification than most traditional filtration methods based on the filtration of mechanical particles and the adsorption of a number of substances using activated carbon.
All reverse osmosis membranes work according to this principle. The reverse osmosis process is carried out on osmotic filters containing special membranes that trap organic and mineral impurities, bacteria and viruses dissolved in water. Water purification occurs at the level of molecules and ions, with a noticeable decrease in the total salt content in the water. Many household reverse osmosis filters are used in the United States and Europe to treat municipal water with a salt content of 500 to 1000 mg / L; high-pressure reverse osmosis systems purify brackish and even seawater (36,000 mg / l) to the quality of normal drinking water.
Reverse osmosis filters remove ions of Na, Ca, Cl, Fe, heavy metals, insecticides, fertilizers, arsenic and many other impurities from water. "Molecular sieve", which are reverse osmosis membranes, retains almost all impurity elements contained in water, regardless of their nature, which protects the water consumer from unpleasant surprises associated with inaccurate or incomplete analysis of source water, especially from individual wells.
In the process of reverse osmosis, water and substances dissolved in it are separated at the molecular level, while almost perfectly pure water accumulates on one side of the membrane, and all impurities remain on the other side of the membrane. Thus, reverse osmosis provides a much higher degree of purification than most traditional filtration methods based on the filtration of mechanical particles and the adsorption of a number of substances using activated carbon.
The main and most important element of reverse osmosis plants is the membrane. Initial, contaminated with various impurities and particles, water is passed through the pores of the membrane, so small that contamination practically does not pass through them. To prevent the pores of the membrane from clogging, the inlet flow is directed along the membrane surface, which washes out the impurities. Thus, one input stream is divided into two output streams: a solution passing through the membrane surface (permeate) and a part of the initial stream that did not pass through the membrane (concentrate).
Reverse osmosis semipermeable membrane is a composite polymer of uneven density. This polymer is formed from two layers, inseparably connected to each other. An outer very dense barrier layer about 10 millionths of a cm thick lies on a less dense porous layer, which is five thousandths of a cm thick. The osmotic membrane acts as a barrier to all dissolved salts and inorganic molecules, as well as organic molecules with a molecular weight of more than 100. Water molecules are free pass through the membrane, creating a permeate flow. The quality of the permeate is comparable to the quality of demineralized water obtained according to the traditional scheme of H-OH-ionization, and in some parameters (oxidizability, the content of silicic acid, iron, etc.) is superior.
A reverse osmosis membrane is an excellent filter and theoretically the content of dissolved minerals in the pure water obtained as a result of filtration should be 0 mg / l (that is, they should not be at all!), Regardless of their concentration in the incoming water.
The reverse osmosis membrane is indispensable for getting rid of water from microbes, since the size of the pores of the membranes is much smaller than the size of the viruses and bacteria themselves.
In fact, under normal operating conditions, 98 - 99% of the dissolved minerals are recovered from the incoming water. In the pure water obtained as a result of filtration, 6 - 7 mg / l of dissolved minerals remains.
Mineral substances dissolved in water have an electric charge and the semi-permeable membrane also has its own electric charge. Due to this, 98 - 99% of the molecules of mineral substances are repelled from the reverse osmosis membrane. However, all molecules and ions are in constant, chaotic motion. At some point, moving oppositely charged ions are at a very close distance from each other, are attracted, their electric charges are mutually neutralized and an uncharged particle is formed. Uncharged particles are no longer repelled from the reverse osmosis membrane and can pass through it.
But not all uncharged particles end up in clean water. The reverse osmosis membrane is designed in such a way that the size of its pores is as close as possible to the size of the smallest water molecules in nature, therefore, only the smallest uncharged molecules of mineral substances can pass through the reverse osmosis membrane, and the most dangerous large molecules, for example, salts of heavy metals, cannot penetrate through her.
In practice, the membrane does not completely retain substances dissolved in water. They penetrate the membrane, but in negligible amounts. Therefore, purified water still contains a small amount of solutes. It is important that an increase in the inlet pressure does not lead to an increase in the salt content in the water after the membrane. On the contrary, higher water pressure not only increases the membrane performance, but also improves the quality of purification when using the reverse osmosis method. In other words, the higher the water pressure on the membrane, the more pure water of better quality can be obtained.
In the process of water purification according to the principle of reverse osmosis, the concentration of salts from the inlet side increases, due to which the membrane can become clogged and stop working. To prevent this, a forced flow of water is created along the membrane, flushing the brine into the drain.
The effectiveness of the reverse osmosis process in relation to various impurities and solutes depends on a number of factors: pressure, temperature, pH level, the material from which the membrane is made, and the chemical composition of the input water, affect the efficiency of the reverse osmosis system. The degree of water purification in such filters is 85% -98% for most inorganic elements. Organic substances with a molecular weight of more than 100-200 are removed completely; and with less - they can penetrate through the membrane in small quantities.
Inorganic substances are very well separated by a reverse osmosis membrane. Depending on the type of membrane used (cellulose acetate or thin-film composite), the degree of purification for most inorganic elements is 85% -98%.
The reverse osmosis membrane also removes organic matter from the water. In this case, organic substances with a molecular weight of more than 100-200 are removed completely; and with less - they can penetrate through the membrane in small quantities. The large size of viruses and bacteria virtually eliminates the possibility of their penetration through the reverse osmosis membrane. However, manufacturers claim that the large size of viruses and bacteria virtually eliminates the possibility of their penetration through the membrane.
At the same time, the membrane allows oxygen and other gases dissolved in water to pass through, which determine its taste. As a result, the output of the reverse osmosis system produces fresh, tasty, so pure water that, strictly speaking, it does not even require boiling.
In industry, such membranes are made from polymer and ceramic materials. Depending on the size of the pores, they are used to:
reverse osmosis;
microfiltration
ultrafiltration;
nanophilization (a nanometer is one billionth of a meter, or one thousandth of a micron, that is, 1 nm = 10 angstroms = 0.001 microns.);
Reverse osmosis membranes contain the narrowest pores, and therefore are the most selective. They trap all bacteria and viruses, most of the dissolved salts and organic substances (including iron and humic compounds that give water color and pathogenic substances), passing only water molecules of small organic compounds and light mineral salts. On average, RO membranes retain 97-99% of all dissolved substances, allowing only water molecules, dissolved gases and light mineral salts to pass through.
The membrane filter material is cellulose nitrate. As many years of practice have shown, this material provides optimal conditions for the growth of detained microorganisms, eliminating the receipt of a false negative result.
The membrane filter consists of several layers that are connected together and wrapped around a plastic tube. The membrane material is semi-permeable. Water is forced through a semi-permeable membrane that rejects even low molecular weight compounds. A schematic diagram of the membrane is shown below.
Reverse osmosis membranes are used in many industries where there is a need to obtain high quality water (water spill, production of alcoholic and non-alcoholic beverages, food industry, pharmaceuticals, electronics industry, etc.).
The use of two-stage reverse osmosis (water is passed twice through reverse osmosis membranes) makes it possible to obtain distilled and demineralized water. Such systems are a cost-effective alternative to still-evaporators and are used in many industries (electroplating, electronics, etc.). In recent years, a new boom in membrane technology has begun.
Membrane filters have become more and more used in everyday life. This became possible thanks to scientific and technological advances: membrane devices became cheaper, specific productivity increased and operating pressure decreased. Reverse osmosis systems allow you to obtain the purest water that meets SanPiN "Drinking Water" and European quality standards for drinking water use, as well as all requirements for use in household appliances, heating systems and plumbing.
Membrane filtration is indispensable for getting rid of water from microbes, since the pore size of the membranes is much smaller than the size of the viruses and bacteria themselves.
Microfiltration membranes with a pore size of 0.1-1.0 microns trap fine suspensions and colloidal particles, defined as turbidity. As a rule, they are used when there is a need for coarse water purification or for preliminary water treatment before deeper purification.
With the transition from microfiltration to reverse osmosis, the pore size of the membrane decreases and, therefore, the minimum size of the retained particles decreases. In this case, the smaller the pore size of the membrane, the more resistance it has to flow and the more pressure is required for the filtration process.
Ultrafiltration (UV) UV membrane traps suspended solids, microorganisms, algae, bacteria and viruses, significantly reduces water turbidity. In some cases, UV membranes effectively reduce the oxidation and color of water. Ultrafiltration replaces sedimentation, sedimentation, microfiltration.
Ultrafiltration membranes with a pore size of 0.01 to 0.1 microns remove large organic molecules (molecular weight more than 10,000), colloidal particles, bacteria and viruses, without retaining dissolved salts. Such membranes are used in industry and in everyday life and provide a consistently high quality of purification from the above impurities, without changing the mineral composition of water.
In industrial water treatment, the most widespread are hollow fiber membranes, the main element of which is a hollow fiber with a diameter of 0.5-1.5 mm with an ultrafiltration membrane applied on the inner surface. To obtain a large filtering surface, groups of hollow fibers are grouped into modules providing 47-50 m2.
Ultrafiltration allows you to preserve the salt composition of water and to carry out its clarification and disinfection practically without the use of chemicals.
Typically, the UV unit operates in dead-end filtration mode without dumping the concentrate. The filtration process alternates with backwashing the membranes to remove accumulated impurities. For this, part of the treated water is fed in the opposite direction. Periodically, a solution of detergents is dosed into the wash water. Wash water, which is a concentrate, is no more than 10–20% of the initial water flow. One or two times a year, an enhanced circulation flushing of the membranes with special detergent solutions is carried out.
Ultrafiltration can be used to obtain drinking water directly from a surface source. Since the UV membrane is a barrier to bacteria and viruses, no primary water chlorination is required. Disinfection is carried out immediately before supplying water to the consumer.
Since the ultrafiltrate is completely free of suspended and colloidal substances, it is possible to use this technology as a pretreatment of water before reverse osmosis.
Nanofiltration (NF) occupies an intermediate position between reverse osmosis and ultrafiltration. Nanofiltration membranes are characterized by a pore size of 0.001 to 0.01 μm. They trap organic compounds with a molecular weight above 300 and pass 15-90% of salts, depending on the structure of the membrane.
Reverse osmosis and nanofiltration are very close in terms of media separation mechanism, process organization scheme, operating pressure, membranes and equipment. The nanofiltration membrane partially traps organic molecules, dissolved salts, all microorganisms, bacteria and viruses. At the same time, the degree of desalination is lower than with reverse osmosis. Nanofiltrate contains almost no hardness salts (decrease by 10-15 times), i.e. it is softened. There is also an effective reduction in the color and oxidizability of water. As a result, the source water is softened, disinfected and partially desalinated.
Modern nanofiltration filters are an alternative to ion-exchange water softeners.
The latest generation of water filters are nanocarbon filters. They are not yet widespread on the world market, but, despite this, they cost relatively little money. Their advantage over other filters is in the special subtlety of cleaning and delicacy of cleaning - they do not remove everything from the water, i.e. leave salts and trace elements in the water. At the same time, they purify water at the nanoscale, i.e. work tens and hundreds of times better than analogues - filters based on carbon sorbent.
But the greatest recognition was gained by reverse osmosis membrane filters for water purification due to the unique quality of water achieved after filtration. Such filters effectively cope with low molecular weight humic compounds, which give water a yellowish tint and impair its taste, and which are very difficult to remove by other methods. Using membrane reverse osmosis filters, you can get the purest water. Such water is not only safe for health, but also preserves the snow-white of expensive plumbing, does not disable household appliances and the heating system, and is simply pleasing to the eye.
Reverse osmosis filters have a number of other advantages. Firstly, impurities do not accumulate inside the membrane, but are constantly discharged into the drainage, which excludes the possibility of their entering the purified water. Thanks to this technology, even with a significant deterioration in the parameters of the source water, the quality of the treated water remains stably high. The performance can only decrease, which the consumer learns from the counters built into the system. In this case, the membrane must be flushed with special reagents. Such flushes are carried out regularly (approximately 4 times a year) by service specialists. At the same time, the installation is monitored. Another advantage is the absence of chemical discharges and reagents, which ensures environmental safety. Membrane systems are compact and fit perfectly into the interior. They are easy to operate and do not need any attention from the user.
Membrane water treatment systems are quite expensive. But, given the fact that when using "accumulative" systems, you will most likely need several installations of different actions, then their total cost will also cost a lot. And if we talk about operating costs, then for membrane systems they are much less.
Reverse osmosis technology is now actively developing. The installations are constantly being improved. Modern systems are complete units with pretreatment of water, installed under the sink or on the water supply line.
Osmotic filters are becoming more and more popular in household use due to their reliability, compactness, ease of use and, of course, the consistently high quality of the water produced. Many consumers claim that it was only through reverse osmosis that they learned the real color of pure water.
Most reverse osmosis filters used in residential premises are equipped with composite thin-film membranes capable of retaining from 95 to 99% of all dissolved substances. These membranes can operate in a wide range of pH and temperature, as well as at high concentrations of impurities dissolved in water.
The most progressive systems for the preparation of drinking water at the present time are reverse osmosis systems, which produce water at the outlet in terms of purification level close to distilled. However, unlike distilled, it has excellent taste, since dissolved gases are retained in it.
The key component of such a system is a semi-permeable membrane that provides a degree of water purification up to 98-99% in relation to almost any pollutant. The membrane allows only water molecules to pass through itself, filtering out everything else. The characteristic pore size of the membrane is 1 Angstrom (10-10 m). This purification removes dissolved inorganic and organic compounds from the water, as well as heavy metals, bacteria and viruses.
In some cases, the use of reverse osmosis is necessary. For example, for water softening. Usually, ion exchange resins are used for this, which replace calcium and magnesium ions in water, which are responsible for hardness, with sodium ions. Sodium salts do not form scale and the permissible concentration of sodium in water is much higher than that of calcium and magnesium. So it's usually okay. But if the hardness is very high, more than 30 mg / eq / l, then sodium is also exceeded during this process. There will be no scale, but you cannot drink such water. This is where reverse osmosis is needed to remove excess sodium - to soften the water.
Today, other types of filters of the membrane sorption class are presented on the Russian market. They consist of a membrane block and one or two blocks (depending on performance and resource) of additional purification. In addition, drinking water, already purified and stabilized in salt composition, undergoes a final 6-12-fold clarification on special fibers and sorbents. Such a combination of numerous methods of purification and clarification of a liquid medium, known among specialists as "water grinding", made it possible to bring the resource of these water purifiers up to 50,000-75,000 liters.
Domestic industry also produces compact reverse osmosis filters designed for water purification in hiking or extreme conditions. Their main advantage is their versatility and compactness, you can always take them with you and be able to use the filter at any time. These are telescopic tubes in the shape and size of a regular fountain pen. Despite the miniature size, such devices are able to reliably purify 10 liters of water from bacteria, viruses, chlorine, phenol and toxic metals.
But, despite their merits, not everyone likes osmotic filters. Main argument: What good is it when the water is perfectly clean? After all, there are no trace elements in it. Answering this question, some manufacturers say that a person receives the necessary trace elements not from water, but together with food, because in order to satisfy the daily need, for example, for potassium, you need to drink 150 liters of water, and in phosphorus - 1000 l; others are developing special mineralizers so that the water after cleaning with a filter becomes not only pure, but also "alive", that is, full for consumption. Such installations have a long resource (4000 - 15000 l) and a high filtration rate (1.5-3 l / min). These filters are expensive, ranging from $ 150 to $ 900, and also require a lot of space to install.
Reverse osmosis is the most widespread technology for deep purification of tap water today. It is based on the use of a partially permeable membrane, which is able to purify water from salts and other unwanted impurities.
The principle of water purification by reverse osmosis is quite simple: under pressure, water molecules pass through a "sieve" of a semi-permeable membrane, then through finishing carbon filters, where foreign odors and tastes are finally removed from the water, its acid-base balance is normalized. The output is ultrafiltered water, completely suitable for drinking and cooking.
All larger particles of the source water are retained and are sent through the reverse osmosis system to the drainage (sewer).
Structurally, this filtration system consists of several cartridges with carbon filters and a membrane, as well as a reservoir for purified water. 
Reverse osmosis systems, like any other filter elements, can clog over time, some of its elements may not work correctly, which reduces the filter's performance.
If the filter emits extraneous sounds, vibrates, works slowly, does not drain water, or, conversely, sends a large amount of water to the drain, then the following parameters should be checked:
If serious problems arise (diaphragm damage, tank leakage, etc.) reverse osmosis repair... However, very often malfunctions are local in nature and you can fix them yourself.
Here is a list of the most common problems and how to fix them:
Possible reasons:
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VIDEO INSTRUCTION
The reverse osmosis membrane may fail earlier than the declared resource for the following reasons:
To check the performance of the membrane, you should measure the amount of water sent to the drain and the amount of purified water. It is considered normal Reverse osmosis efficiency 5-15%, i.e. 85-95% of the water goes to drainage.
The easiest express way to reliably check the performance of the membrane is to purchase a TDS meter. This small salt meter, which costs about 1000 rubles, allows you to find out the content of impurities in the water.
After osmosis, the TDS meter should show no more than 15 units. If the indicator is higher, then the membrane is not working efficiently and needs to be replaced.
Then you have come to the right place! Our customer service will help you solve any issues with your water filter in Rostov-on-Don and Krasnodar.
To order the service you need, just call the phones listed on the website and negotiate with the manager for a TIME CONVENIENT FOR YOU!
On the one hand, it is not difficult to install a reverse osmosis filter on your own, but in fact it is not entirely true, this requires certain skills, knowledge and tools.
Installation of a reverse osmosis filter often takes place in several stages:
You can order a standard osmosis unit by calling by phone or by pressing the button to call the wizard and fill out the form.
Under not The standard installation means: non-standard arrangement of the filter (+ 300 rubles), drank wooden passages (+ 400 rubles), the use of an additional fitting not included in the delivery set, the choice of a filter (+ 200 rubles), re-analysis of the drain line (+ 200 rubles)
Timely replacement of reverse osmosis filters is very important because this affects the quality of the water you drink and the longevity of osmosis.
You can replace the cartridges on your reverse osmosis filter on your own, but it is better to use the services of professionals in this matter. this process is not as simple as it seems initially.
Replacement of cartridges in reverse osmosis takes place in several stages:
Washing and disinfection of the clean water tank and filter housings should be done at least once every 3 years, or if foreign tastes and odors begin to appear in the treated water. Here is a detailed instruction if you decidedo the flushing of the tank in osmosis yourself.
Are you not leaking water from your filter? Is water constantly running down the drain? Are there any foreign odors in the filtered water? Is your reverse osmosis filter leaking?
No matter what happened to your reverse osmosis filter, our experts will always help!
Installing a flow-through filter is not a particularly complicated process and if you have certainWith the skills and tools you can install, your flow filter, and yourself. But if you want to be guaranteed to be sure that the flow filter is installed correctly and the water is filtered as expected, then it is better to use the services of professionals in the installation and maintenance of filters.
Timely replacement of cartridges (filters) in the flow filter is very important. After all, cartridges that have exhausted their resource can throw out into drinking water the dirt that they have accumulated in themselves and, in addition to just 6-12 months, a colony of bacteria begins to appear in the filter cartridge. By contacting our specialists, you will find out which cartridges, when to change and which cartridges are suitable for water purification in your region, and our experts will install the cartridges in a high-quality manner and in the required sequence.
Regeneration of cartridges is the restoration of the filtering properties of the cartridges (only those filter elements, the regeneration of which is provided by the manufacturer). Our specialists will be happy to regenerate your cartridge and it will work like new again.
If your water filter has become unstable, i.e. does not pick up the tank, slowly filters, leaks, etc. In most cases, it is possible to diagnose the malfunction in the telephone mode, but sometimes this can be done only after the visit of the master to your home.
Installing a main filter is a rather laborious process that requires certain knowledge and skills, as well as the availability of a tool. Before installing the main filter, it is necessary to inspect the installation site to understand the dimensions required for installation. Next, you need to choose a place where it will be convenient to maintain the main filter in the future. Only after that the master starts installing the filter with high quality and with a guarantee.
Replacement of cartridges in the main filter.
Replacing the cartridges in the main filter is not difficult. But you need to be able to correctly replace the cartridge, because often the main filters are in a hard-to-reach place and only a qualified specialist can minimize the amount of spilled water and the likelihood of flask leakage after replacing the cartridges.
Installing filters for the whole house (softener filter, column-type filter, cabinet-type filter, high-performance reverse osmosis systems, etc.) requires a huge amount of knowledge and tools, not so much installation as setting up and running the filter. But our specialists will help you in this matter too.
This service means the replacement of the filtering load in the filter for the whole house (column or cabinet type). Replacement frequency from 12 to 60 months.
Salt delivery for filter regeneration.
We deliver salt for the regeneration of reagent filters (softeners and complex filters). The delivery cost is indicated for the quantity up to 9 bags, if you need to deliver a larger quantity, please coordinate the delivery cost with our operators.
Installation of a boost pump for osmosis
The master will install a pressure boosting kit for the correct operation of the reverse osmosis. Start up and check the correct operation of the system with a step-up pump. Also, this service implies the replacement of the current reverse osmosis pump. This work involves a household system.
Dismantling the input unit (input tee)
In cases where a transfer of the system is required, or your water filter is being replaced, or you need to replace the tee connecting your filter with the water supply, then this service will do.
Replacing the storage tank osmosis, diagnostics, pumping
When you need to set the required pressure in the storage tank of your household reverse osmosis filter, or you just need to replace it - disconnect the old one, drain the water, connect a new one, check the work (the old container is not disposed of and is not taken out by our company). This service is also suitable for installing an additional osmosis tank. You do not need to pump up a new container!
Moving a filter to another address
Rental apartment? Have you bought a new one? Are you moving? Our company is pleased to offer the service of transferring the filter to a new address. This service includes: departure of the master to the 1st address and dismantling of the old system, transportation of the filter to the new address, installation of the filter at the 2nd address. In this case, you may need to replace the cartridges with new ones, you may need some inexpensive fittings to connect. With a decrease in the filtration rate of an industrial installation, or with an increase in pressure on the membrane blocks, it is recommended to carry out a chemical cleaning of the membrane elements. Our company uses only high-quality chemistry tested by experience. The quality of the chemical flushing is very much dependent on the degree of contamination of the membrane elements, therefore we recommend not to start the chemical flushing intervals. Depending on the pollutants, we use five-stage flushing, or six-stage flushing, the time required for flushing takes one working day. This service is available at the office of our company.
