How Often Should I Clean Swimming Pool Filters?
I have a swimming pool that uses cartridge filters. How often should I clean the swimming pool filters? The answer can vary from filter to filter, but a general guideline on any swimming pool filter is to take a reading when the filter is clean, then clean the pool filter when the pressure rises about 10 psi. As the filter (cartridge, sand or DE) becomes “clogged” with debris, two things happen: • the back pressure on the filter system rises • the overall flow rate of the swimming pool circulation system drops One of the most important factors of a cartridge filter operation is that there not be too much flow through the filter. Too much flow significantly decreases the cartridge life and lowers the efficiency of the filter (stuff gets through the filter and goes back into the swimming pool). You will find on the outside of the filter a maximum pressure reading label. Be certain that your filter does not exceed this pressure. Most cartridge filters run at a lower pressure than sand or
