Hot tub water that is low in pH can be corrosive to pumps, heaters and damage the hot tub shell. pH plus is a powdered additive that can be used to raise the pH to a desirable level. Always aim for a pH level of between 7.2 and 7.6. pH plus is suitable for use in swimming pool, spas or hot tubs.
Increase the pH level of the water to improve hot tub conditions.
1, Add 11 grams per 1,000 litres of spa water. (1 teaspoon is 5 grams)
2, Dissolve in warm water in a plastic bucket and distribute evenly around the pool with the pump operating.
3, Leave for 8 hours then re-test to ensure pH level 7.2 - 7.6.
4, Add more if required .
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