Best Way to Clean Pool Filters
Pool Knowledge

The Best Way to Clean Pool Filters {2020}

Your pool filter is an important part of the system that keeps your pool clean. Just as with other filters, it needs to be cleaned. How to clean it will depend on what kind of pool filter you have; it could be a cartridge, sand, or diatomaceous earth filter. Read on to learn the best way to clean pool filters. Keeping your pool filter clean will increase its useful life.

Cartridge Filters: What You Need

The cartridge filter is one of the easiest to clean. First, you need to make sure that you have everything you need to clean it, including the following:

And the following optional items:

Cartridge Filters: Cleaning the Filter

Once you have everything you need, cleaning the filter is a fairly straightforward process. Follow these steps to clean your filter:

  1. Turn your pool filter system off.
  2. Depressurize the system by removing the air. You will find an air relief valve on top of the filter (in most cases). Turn it slowly to remove the air from the system.
  3. Unhook the clamps on the side and remove the top of the filter now.
  4. Lift the filter straight out slowly and check it for any damage. You can also note how dirty it is. If you find rips or cracks, you will need to replace it altogether.
  5. You should start by spraying the cartridge with the hose. You can use the cleaning solution and the cleaning tool to make sure that you clean in the folds of the cartridge. If you need to soak the cartridge overnight, you can place it in the bucket with filter cleaning solution
  6. Check the o-ring on the tank that holds the filter. If it has any corrosion or looks worn out, you should replace it.
  7. Rinse the filter.
  8. Now you can put the filter back in the filter tank. Be gentle as you slide it right into place. You can put the lid back on the tank and clamp the sides.
  9. Turn the filter system back on. Open the air valve while you do this so you can make sure that you get all the air out of the system.

If you clean your filter every six months, it shouldn’t get too dirty. If it has been a while, you will probably need the bucket so that you can soak the filter overnight. If your filter is beyond cleaning, it is simple to replace it.

Sand Filter: What You Need

Cleaning a sand filter is a different process. You need to backwash the filter if the PSI gets too high or if your pool starts to look cloudy. You should do a chemical cleaning once a year. You will need the following:

Sand Filter: How to Clean

To get started, backwash the filter to remove any debris that may be in there. You can do this for five minutes. Now you are ready to clean:

  1. Turn the pump off and turn the valve to filter.
  2. Now you can remove the lid from the strainer.
  3. Pour the sand filter cleaner in and replace the lid.
  4. Turn the pump on briefly to move the cleaner to the filter.
  5. Now you can turn it off and leave it off overnight (around eight hours).
  6. You can backwash the system one more time for five minutes.
  7. Turn the filter back on.

Diatomaceous Earth Filter: What You Need

If you have a diatomaceous earth pool filter, you will need the following:

Diatomaceous Earth: How to Clean

Start by backwashing the filter for five minutes to remove any debris. Then follow these steps:

  1. Turn the filter off and open the air relief valve.
  2. Remove the drain plug and drain the filter.
  3. Unlock clips and open filter tank.
  4. Remove filter manifold and take out grids.
  5. Rinse tank with the hose. You can use the cleansing solution if it is very dirty.
  6. Rinse the grids out thoroughly and return to the tank. Return the filter and lid.
  7. Turn the pump on and open the air valve to get rid of all air. Close it when water comes out.
  8. Add DE powder to the filter. Mix powder with water. Pour it into the skimmer with the pump running.
  9. Keep the pump on for at least 30 minutes.