This product is used to lower the pH in spa Water. The water in the spa should be maintained at a pH of 7.2-7.8 and total alkalinity from 80-120 ppm. Test water frequently with suitable test kit to ensure proper pH is maintained. this product is compatible with all sanitizers including bromine, chlorine and biguanide.
DANGER, POISON. Contains Sodium bisulfate. CAUSES SEVERE BURNS. HARMFUL IF SWALLOWED. Avoid contact with eyes, skin and clothing. Avoid breathing dust and use with adequate ventilation. Wear goggles and use rubber gloves when handling. Wash thoroughly after handling. Do not mix with any chlorine products or other household chemicals.