Check the listing for details. BioGuard Balance Pak 200 - 6 lb - 2 Pack. Condition: New. Listed at 43.98 USD. Proper pH balance is critical in maintaining any type of pool. A low pH can cause corrosion to the pool and equipment, swimmer irritation, and chlorine inefficiency while raising overall maintenance costs. BioGuard Balance Pak 200 quickly and easily raises pH to the proper level. 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 Balance Total Alkalinity to 125 to 150 ppm Use a Dosage test kit or test strips to determine pH If pH is below 7.2, apply Balance Pak 200 as determined by the Alkali demand chart in test kit Apply by broadcasting product evenly across the pool with the pump running Circulate for 2 hours and retest pH Add a maximum of 1 lb. per 10,000 gallons of water