5 Things to Know About Cloudy Pool Water After Shocking

Cloudy water is normal for up to 24 hours after shocking Dead algae and minerals kicked up by the shock make the water hazy. Give it a day with the filter running, and it usually clears on its own.

The cloudiness comes from oxidized particles Shock oxidizes algae, bacteria, and organic gunk. Those dead particles float around until your filter catches them.

High pH or alkalinity can make cloudiness last longer If your pH is above 7.6 or alkalinity above 120 ppm, calcium can precipitate out and keep the water hazy. Keep pH between 7.2 and 7.6, alkalinity between 80 and 120 ppm.

Run your filter 24 hours straight and backwash as needed Continuous filtration clears the water fastest. Backwash if your filter pressure rises.

If still cloudy after 48 hours, use a clarifier or flocculant Most of the time, patience and filtration are enough. But if the haze persists, a pool clarifier or flocculant will help settle or trap the remaining particles.