To Raise pH of Spa Water
 
Directions for use:
Dosing instructions for 500 gallons
pH Test Results:
6.8 - 7.2 - Use 1/2 oz.
6.5 - 6.8 - Use 3/4 oz.
Below 6.5 - Use 1 oz.
Broadcast appropriate dose in hot tub water with jets running.