How to Clean your Pool or Spa Cartridges
When the pressure gauge on your filter reaches about 15-20 p.s.i. it is time to clean your pool filter cartridges. A good rule of thumb is to take the p.s.i. measurement with a clean pool filter and not let the pressure go 8 lbs. above the original reading.
Turn the power off to your pump and relieve the pressure that has built up in the pool filter. Follow the manufacturer’s instructions to remove the lid of your filter.
Remove the cartridges from the canister and place in an area away from the pool or spa.
There are many filter cartridge cleaners on the market and use either a spray or soak method. Follow the instructions on the bottle. For stubborn stains, you may use TCP to soak. Do not acid wash your filters.
Once the cartridges have been sprayed with the cleaner, use a garden hose, spraying from top to bottom at a 45 degree angle, removing all dirt, debris, oils etc. Rotate the cartridge to clean all sides. Do not use a pressure wash nozzle as that will damage the filter media.
Once all cartridges are rinsed thoroughly with clean water, place back in the filter canister. Follow the manufacturer instructions on how to safely close and restart your system.