Effectively lowers pH or Alkalinity in swimming pools or spas
95% Sodium Bisulfate, also known as dry acid.
Lower the pH levels in your pool or spa with pH Minus (pH Decreaser). This sodium bisulfate Pool  pH Decreaser is highly effective and concentrated, containing 95% sodium bisulfate dry acid, ensuring great results!
Directions:
Before Adding pH Decreaser
First establish the pH of pool water with a good quality water test kit or in store!
Use the Dosage chart shown on bottle to determine the correct amount of pH decreaser to add, or add as directed by staff.
Always have your pool pump running when adding this chemical.
With your pool pump running broadcast the pH reducer around the pool.
Retest the pool and spa waters pH level and add additional pH decreaser if needed.
 
*Viscount label may be substituted for another name brand label in stock of the same size with the exact same chemical composition.
 
*Caution keep out of reach of children*