Water Chemistry Help

Cloudy water is the #1 hot tub complaint. It's almost always one of three things: 1. **Low sanitizer** — If your chlorine or bromine is below 3 ppm, bacteria and organics build up and cloud the water. Shock the tub with dichlor or non-chlorine shock. 2. **High pH or alkalinity** — When pH climbs above 7.8, calcium and minerals fall out of solution and make the water look milky. Lower pH with a pH decreaser (sodium bisulfate) to 7.2–7.6. 3. **Dirty filter** — A clogged filter can't trap the fine particles. Spray-clean your filter with a hose, and soak it in filter cleaner monthly. **Quick fix:** Test your water, balance the chemistry, shock it, and run the pump with the cover off for 30 minutes. If it's still cloudy after 24 hours, you may need a clarifier or a partial drain.