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When Do I Need to Change My Pool Filter Cartridge?
How often you change your pool filter cartridge depends on many factors. Pools that see a lot of traffic - pool parties, daily laps, etc. - may need their cartridges changed more often. As a general rule, the more people using the pool, the more hair, suntan lotion, and body oils get tracked into the filter. Over time, this can create a sheen over the top of the pool that can be difficult to clean.
Pools that have trees nearby may also need their filters changed more frequently. Leaves and other debris can clog your filter in a hurry, so it is important to clean your pool daily with a leaf rake if trees, plants, and other flora are nearby. Although there are no hard and fast rules about when to change your pool filter cartridge, there are certain signs to watch for to keep your pool water sparkling all summer long.