PacifiClear 25 Lb. Calcium Hardness Increaser Granule Striking Tools saturate a towel with water

saturate a towel with water and lay over the treated area

This dependable

Perfect for Travel

flexible "d" weight backing for dry sanding of painted wood & metal

exclusive longitudinal rib design protects by holding level around perimeter edges

PacifiClear 25 Lb. Calcium Hardness Increaser Granule Striking Tools saturate a towel with waterCalcium hardness increaser made of calcium chloride. Low water hardness could stain or etch the pool surface and corrode equipment, calcium hardness increaser raises water hardness level. Prevents foaming and equipment corrosion. 6 Lb. of calcium hardness increaser per 10,000 gallons of water will raise calcium hardness level by 50 ppm (parts per million).