Solus Spa Calcium Booster 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 spa equipment. Before adding Increase Calcium to your spa, test the water with a calcium hardness test kit. The ideal hardness level is 200-400 ppm (parts per million).
Solus Spa Calcium Booster Directions for Use
One ounce of Spa Calcium Booster per 500 gallons of spa water increases calcium hardness by seven ppm.
Determine the amount of product to be added using a calcium hardness test kit.
Pour the proper amount of Solus Spa Calcium Booster into your spa or hot tub with the equipment turned on.
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