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

Cloudy water that won’t clear If your pool stays cloudy after backwashing and chemical balancing, the sand is likely too coated to trap fine particles.

Low pressure after backwashing When the pressure gauge stays low even right after a backwash, water is channeling through the sand instead of filtering evenly.

Sand feels clumpy Grab a handful of sand from the filter. If it feels clumpy or sticky instead of loose and gritty, it’s coated with oils and minerals.

It’s been five years Five years is the safe replacement interval. You can stretch to seven with pristine water and perfect chemistry, but it’s a gamble.

Debris is sneaking back into the pool If dirt and particles return to the pool after filtering, the sand has lost its ability to trap them.