Your spa's pH needs to be in the range of 7.2 to 7.6. High pH will make the water uncomfortable can lead to scale formation. With SpaPure pH Down in the ideal range the water is comfortable for bathers and will help prevent equipment from degrading.
Benefits
Helps protect equipment from damage caused by scale
Instantly lowers pH in spa and hot tub water
Provides comfort to users
Made in the USA
Applications
Apply to the spa while the water is circulating or as it is being filled
When pH is above 7.6 ADD one tbs for every 500 gallons of water
Wait 30 minutes and test. If pH remains high, then repeat treatment