Sundance Clacium Hardness Increaser

Increases water hardness to minimize corrosion.
Availability: In stock (1)

This product is used to increase calcium hardness in spas and hot tubs in areas with low levels of hardness. Low hardness will etch plaster and corrode equipment. before adding this product, test the water with calcium hardness test kit or ask your local spa dealer. The ideal hardness level is 200-400 pp. (parts per million).

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