Liquid formula specially designed to adjust pH and alkalinity levels. It gently lowers both pH and total alkalinity.
1. If pH value of water is above 7.8 add 1 oz. of SPA DECREASE to a plastic bucket full of water.
2. Pour solution into spa water.
3. Wait 60 minutes and retest pH and total alkalinity levels.
pH and total alkalinity should be tested and compared together.
Chlorine, Bromine, ozone, biguanide and mineral purification systems.