Description
Use when total alk. drops below 80 ppm..Keeps your pH and Chlorine from becoming unstable Granular form, easier to apply into your water.Compatible with pool, spa, and hot tub.Dosage: 1-1/2 pounds per 10,000 gallons will raise the alk. level by approximately 10 ppm.Retest water after every dosage added, you can swim after 4 hours of circulation 5 lb bag.