The Sirona Spa Care Calcium Booster is a safe and efficient spa balancer that will effectively raise the level of calcium in spa water. This liquid balancer will gradually increase water hardness, and also help prevent the corrosion of equipment, and foaming. Sirona Calcium Booster is compatible with all sanitizers including bromine, chlorine, salt water, ozone, minerals and biguanide. Use this product to safely maintain a Calcium level between 150-400 ppm.
One fluid ounce of Calcium Booster will raise the calcium hardness 7 ppm in 500 gallons of water.