Check the listing for details. ClearView pH Up Increaser 10 lb. Condition: New. Listed at 49.99 USD. Use ClearView's "ph Up" to raise pH in swimming pool water. The recommended pH for pool water is a range of 7.2 to 7.6 for maximum bather comfort and effective use of granular or tablet chlorine concentrate in your pool care program. A low pH can cause corrosion to the pool and equipment, swimmer irritation, and chlorine inefficiency while raising overall maintenance costs. Test for pH daily at the same time you test for chlorine. Product Benefits: Raises pH For all pool types Convenient granular form Easy to use (no mixing required) Increases chlorine efficiency 100% Active ingredient Protects pool equipment and surfaces Reduces maintenance costs Dosage: Balance Total Alkalinity to 125 to 150 ppm If pH is below 7.2, apply pH Up at a rate of 1/4 lb. per 2.500 gallons of pool water If pH is 6.8-7.2, add 12 oz of pH Up per 10,000 gallons If pH is 6.5-6.8, add 1 lb. of pH Up per 10,000 gallons If pH is below 6.5, add 20 oz. of pH Up per 10,000 gallons Apply by broadcasting product evenly across the pool with the pump running Circulate for 2 hours and retest pH