Sodium Carbonate Spa PH Increaser

PH Plus will increase the PH of the spa water. The total alkalinity of the spa water should be maintained between 80 and 150 ppm. Maintain the PH within the desired range of 7.2 to 7.8. This product should be used as necessary when PH is below 7.2 NOTE: For best results, disolve granular products first by adding to a small, plastic pail filled with water. Then, apply the solution to the spa water.