5 Things to Know About Pool Filter Pressure Gauges

The pressure gauge is the only reliable sign of a clogged filter Ignore how the water looks. Cloudy water means you are already behind on maintenance.

Clean the filter when pressure rises 8–10 PSI above baseline Note the pressure when the cartridge is clean. Once it climbs that much, clean it immediately.

Spray the cartridge with a garden hose on jet setting Work debris out from between the pleats from top to bottom. Do not use a pressure washer, which shreds the fabric.

Soak greasy cartridges in filter cleaner Sunscreen and body oils require a few-hour soak in TSP substitute or similar cleaner. Rinse thoroughly afterward.

Replace the cartridge when pleats tear or flatten This usually happens every one to two seasons. Check the gauge monthly during swim season.