6 Signs It’s Time to Replace Your Pool Filter Sand

Filter pressure stays low When the sand bed develops channels, water flows through without catching dirt, and pressure drops.

Pool water stays cloudy If your pool remains hazy despite normal chemical levels and pump run time, the sand is likely failing to trap particles.

Sand is more than 5–7 years old For a typical residential pool, replace sand every 5–7 years, even if it seems fine.

You had a major algae bloom Heavy contamination can coat sand particles with oils and organics, reducing filtration effectiveness sooner.

You ran the pump 24/7 during a hot summer Extended use accelerates buildup of calcium and debris on the sand grains.

A sand cleaner doesn’t restore performance Try a degreaser first. If pressure and clarity don’t improve, new sand is cheap insurance.