Use to Lower pH of Spa Water
 
Directions for use:
Dosing instructions for 500 gallons
pH Test Results:
7.6 - 8.0 - Use 1/2 oz.
8.0 - 8.4 - Use 3/4 oz.
Above 8.4 - Use 1 1/4 oz.
Broadcast appropriate dose in hot tub water with jets running. Retest in one hour, add accordingly, until proper pH is attained.
pH should be maintained between 7.4 - 7.6.