Safer alternative to muriatic acid. No harsh odors. Swim right away.

Quell pH Reducer lowers the pH of your pool or spa quickly and safely — no harsh odors, no waiting to re-enter the water when used as directed.

Traditional pH reducers use muriatic (hydrochloric) acid — corrosive, fuming, and dangerous to handle. Quell pH Reducer is an innovative solution that makes pH reduction quicker and safer.

Simple 3-step use:

1. Test your pool or spa pH
2. Add Quell pH Reducer per the dosage chart
3. Circulate 30 minutes and retest — repeat as needed