SpaGuard pH Increaser (18 oz) (3 Pack)

*Please Note: SpaGuard has a updated look. Same product, same size, new label. SpaGuard pH Increaser (18 oz) (3 Pack) SpaGuard pH Increaser is a dry, granular product that gradually raises your pH level. Your pH level should be maintained at 7.2-7.6, as measured by an accurate testing method. Product Information: 100% sodium bicarbonate pH 11.6 Raises pH Protects corrosion of equipment due to low pH Balances water for bather comfort Directions for use: 1. If pH is below 7.2, apply according to directions below 2. Apply by broadcasting product evenly across the spa with the pump running 3. Circulate for 30 minutes and retest pH pH 7.2 or less: 2 tsp per 100 gallons of water. pH at 7.2: 1 tsp per 100 gallons of water. pH at 7.3: 1/2 tsp per 100 gallons of water.