Leisure Time Spa Balance Liquid Spa Up pH Increaser (30420A) Spa water should be maintained at a pH of 7.2-7.8 and a total alkalinity of 80-120 ppm. This product should be used if the pH is above 7.8 or if the total alkalinity exceeds 120 ppm. Compatible with all sanitizers including bromine, chlorine and biguanide Raises pH and total alkalinity Easier to use than granular balancers Compatible with chlorine, bromine, ozone and biguanides Solution requires no diluting Pre-mixed - just add to spa; it is a part of the simple spa care program