Blue Wave Swimming Pool Hardness Increaser - 25 lb
The first, most important step to proper swimming pool care is to keep your pool water balanced. Balanced pool water ensures the most effective use of your chemicals. Use Blue Waves Hardness Increaser to raise the hardness (calcium) level in your pool to an ideal range. Hardness Increaser prevents water from becoming corrosive and damaging your pools plumbing and heater. Prevent the staining and etching of your pool surfaces caused by low hardness levels. Blue Waves Hardness Increaser is great for use in areas where soft water is a problem.