pH Minus Sodium Bisulfate. High pH above 7.8 causes scaling calcium deposition and cloudy water. Fast dissolving granular pool acid lowers the pH and alkalinity of pool water. Safer to handle than muriatic acid. 2.5 lbs. of pH MINUS is equivalent to 1 quart of muriatic acid.
✓ In stock
No reviews yet. Be the first to share your experience!