Leisure Pool pH Decreaser (Sodium Bisulfate) | 50 lb. Pail

? Sodium Bisulfate, 50 lb. Pail, (Dry Powder) commonly known as pH Decreaser, is used to lower pH in commercial and residential swimming pools and spas. ? DOSING CALCULATIONS: 10 lb. per 120,000 may lower pH level by 0.2. ? Ships in a 50 lb. pail with re-sealable lid for easy storage.