5 Reasons Your Pool Is Cloudy After Shocking

Dead algae is floating in the water Shock kills organic matter, which turns into fine particles that stay suspended until your filter catches them. Run the filter 24/7 until the water clears.

Granular shock hasn’t fully dissolved Undissolved shock granules can settle on the pool floor and create cloudiness. Brush the walls and floor daily to help them dissolve or vacuum them up.

High pH is causing calcium scaling If your pH is above 7.4 after shocking, calcium can precipitate and make the water hazy. Lower pH to 7.2–7.4 using muriatic acid or a pH decreaser.

Your filter needs cleaning A dirty filter can’t trap the particles. Check the filter pressure and clean the cartridge or backwash if it’s high.

Chlorine levels are too high Fresh shock can make water temporarily cloudy on its own if chlorine is way above normal. Test and let it come down naturally over 24–48 hours.