Calcium Hardness Booster Water Balancer for Pools

Your pool water might look sparkling clear, but your water may also contain a concealed hazard to your pool equipment and surface - Low calcium hardness. If the water does not have enough calcium, it will scratch plaster surfaces. Discount Pool Supply's Calcium Hardness Booster is an easy to use chemical that works quickly to increase the calcium hardness in your swimming pool or hot tub and help maintain calcium levels between 200-300ppm for pools and hot tubs.