Spa Essentials Alkalinity Increaser 2 lbs
Spa Essentials Alkalinity Increaser raises total alkalinity in spa water. Low total alkalinity may cause spa water to be corrosive to metal and may result in staining, etching, or distorting of all types of spa surfaces. Proper alkalinity helps to prevent these problems and also eliminates "pH bounce" by buffering the water against large pH changes. Total alkalinity in spa water should be maintained in the range 125- 150 ppm.