5 Things to Know About Replacing Pool Filter Sand

Replace sand every 5 to 7 years Five years is safer, seven is the maximum. Most people replace it too often or not at all.

Sand doesn’t wear out like a cartridge filter It just gets clogged with oils and scale over time. After five years, it stops filtering well and the pressure gauge rises faster.

Backwashing and deep cleaning can extend the life If you backwash regularly and use a filter cleaner occasionally, you might stretch it to ten years. But if your pool water stays cloudy after a good backwash, the sand is done.

Don’t replace sand more often than every five years It’s not like changing oil. The sand itself doesn’t go bad—it just loses its ability to trap fine particles.

Change old sand immediately if it’s been in place for decades If you inherited sand that’s been there since the 1990s, replace it right away.