GLB pH Up – 5 lb by GLB

1 lb per 10,000 gallons when pH is below 6.6

3/4 lb per 10,000 gallons when pH is between 6.6 and 7.0

1/2 lb per 10,000 gallons when pH is between 7.0 and 7.2

Note: If the pH is continually low, the pool water should be tested for Total Alkalinity. If Total Alkalinity is low, it should be correct by adding GLB Total Alkalinity Increaser.

• pH should be maintained between 7.2 and 7.8