Cloudy water is annoying because it’s never just one thing. But it’s rarely a mystery either.
Start with the filter. A dirty cartridge or sand that’s gone stale can’t trap fine particles, so they just float around making your pool look sad. Check the pressure gauge. If it’s sitting 8 to 10 psi above its clean reading, it’s time to clean or backwash.
Run time matters too. Plenty of people run the pump four hours a day to save electricity, then wonder why the water turns hazy. Most residential pools need eight hours minimum in summer. More if you’ve got a crowd swimming every weekend.
Then there’s chemistry. High pH is the sneaky one. Chlorine barely works above 7.8, so you can dump in shock all day and nothing changes. Test the water properly, not just with a strip you’ve had in the garage since 2022.
A few quick things people overlook:
Pollen season. A windy afternoon can load the pool with fine yellow dust.
Sunscreen and lotion after a pool party.
New plaster, which clouds for a few weeks no matter what you do.
And please, don’t keep adding chemicals every day. Change one thing, wait 24 hours, test again. Otherwise you’re just guessing and burning cash.
When you’ve done all that and it’s still foggy, the problem might be hardware. A cracked filter grid or a bypassing valve will quietly undo everything. That’s the moment to bring in a california pools company rather than buying a fourth bottle of clarifier.
Tracy summers dry out the air and push evaporation hard, which means chemistry drifts faster than you’d expect. Anyone offering pool repair Tracy CA should be willing to walk you through what they found, plain English, no jargon wall.
Test weekly. Empty your baskets. Run the pump. That’s most of it.