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 ...

We may earn revenue from the products available on this page and participate in affiliate programs. Learn More › Sand filters are commonly used for keeping your swimming pool’s water clean, but over ...

If you have a backyard pool, you need a filtering system to keep the water clean, and the San Antonio Water System wants you to install the high-efficiency, water-saving kind. The city-owned utility ...