Above-ground water filters are available in three types—sand, cartridge, and diatomaceous earth (DE)—to keep your pool water clean. The best above-ground swimming pool filters can treat 3,000 gallons ...

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Your pool filter works hard for you, so it's important you keep your filter cartridge clean. If you have a pool that uses a pool filter cartridge, here's what you need to do to keep it clean so you ...