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Maintenance of water filters

Ūdens filtru kopšana

Taking care of water filters is not a complicated process but it includes regular filter washing, their disinfection as well as timely replacement of filter elements. In this article we will talk about why water filters become dirty as well as take a look at the maintenance process of various filters (cup filters, triple filters and reverse osmosis filters).

Why does pollution occur?

Despite pre-disinfection of the water with chlorine water from the centralized water supply system may contain certain bacteria that move through the water supply system. Although these bacteria are not pathogenic they tend to cause fouling by settling on the surface of the water filter. The initial stage of the contamination is like a green or red slimy film which is easily washed off with water and a sponge. If the contamination is not cleaned at the initial stage then  it settles and later requires more aggressive reagents to remove it.

If the contamination or mold has occurred outside of the filter, the cause is most likely high humidity or mold fungus. In this case the filter must be washed using chlorine-containing reagents and/or soda.

Cup filter maintenance

The average lifetime of a cup filter is 5 years. Full-fledged filter operation requires timely replacement of the cartridges as well as washing all components of the filter using a sponge and dishwashing liquid (each time the filter element is replaced). In case of proper use and maintenance of the filter problems with biological contamination do not arise.

Triple filter maintenance

Ecosoft Standard 3 pakāpju ūdens filtrs

The average service life of the triple filter systems is 5 years, filter cartridges need to be changed on average every 6 months. For this type of filters contamination most often occurs in the filter flasks. Each time the cartridges are replaced they need to be thoroughly washed using a sponge and household dishwashing detergent. A video tutorial on replacing the filter elements is available here.

In order to ensure the full functioning of the filter it is also recommended to perform disinfection of the system which includes the following stages:

  1. The water tap must be closed before cleaning the filter.
  2. Open the sink faucet and release excess pressure.
  3. Used cartridges must be removed.
  4. The second and third flask must be screwed on.
  5. In the first flask should be placed a disinfection tablet or 50-60 ml of a chlorine-containing agent and the flask should be screwed on.
  6. Open the faucet located on the surface of the sink and then turn on the water supply.
  7. When the smell of chlorine appears the water supply and the faucet should be closed.
  8. Wait 2-3 hours.
  9. Open the faucet, the water supply and drain the water until the smell of chlorine disappears.
  10. Turn off the water supply.
  11. Wash your hands thoroughly and install a new set of filter elements.
  12. The system must be observed for 2 hours to avoid water leakage.

Reverse osmosis filter maintenance

reversās osmozes filtrs

Microbiological contamination is also observed in reverse osmosis water filters. Most often it concentrates in prefilter flasks and drainage pipes, less often on the surface of the membrane element or in the storage tank. Mineralizers and post-filters are very rarely subject to contamination as they are supplied with purified water that has passed through the membrane.

A video tutorial on replacing the filter elements is available here. Disinfection of reverse osmosis filters is recommended every six months.

The filter disinfection process consists of the following stages:

  1. Close the tank and the tap of the water pipe.
  2. Drain the remaining water from the system and remove the pre-purification cartridges.
  3. Using tongs remove the osmotic membrane and place it in the refrigerator.
  4. Screw in the second and third flasks (in the direction of the water flow) and connect the white pipe.
  5. In the first flask put a chlorine disinfection tablet or pour 50-60 ml of chlorine bleach and screw it into the base.
  6. Wait 15 minutes and open the water supply and faucet.
  7. When the smell of chlorine appears close both taps and wait 2-3 hours.
  8. After that open the sink faucet and wait until the smell of chlorine disappears.
  9. All filter elements must be installed and the water supply and faucet must be opened.
  10. Pour 14-20 liters of water (at least two tanks).

Disinfection of the water tank can be done together or separately with the disinfection of the RO filter. The tank disinfection process consists of the following stages:

  1. Turn off the water supply to the filter and empty it.
  2. The tank tap must be closed.
  3. The pre-purification cartridges must be removed and the 2nd and 3rd flasks must be screwed on.
  4. The canister tube connected to the afterfilter should be disconnected and connected to the fitting of the third flask.
  5. Add a chlorine tablet to the first filter flask and wait 15 minutes.
  6. Open the tap for 5-7 minutes.
  7. Close the tank valve and wait two hours.
  8. The white tube of the third flask must be disconnected and the water must be poured from the tank.
  9. Connect the tubes in the usual order and insert the cartridges.
  10. Standard pipe connections must be restored.
  11. 24 – 50 liters of water must be poured (at least 3 tanks).

In addition to the six-month period the equipment also must be disinfected after more than two weeks of inactivity. Disinfection of the filter and replacement of cartridges in time can avoid the appearance of deposits on the filter.

In case it is not possible to perform water filter maintenance on your own, contact us and our team of experienced specialists will help you!
+371 23550935

Read also: Microorganisms in water.

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