GLB Calcium Hardness Up increases water hardness to prevent foaming, equipment corrosion, and scaling. Keeping your pool water balanced is an important step in getting the most out of and preserving the life of pool equipment. This product is easy to apply, just pour it directly into the pool. This product is compatible with chlorine, bromine, ozone, salt water pools, and biguanide sanitizers.
GLB Calcium Hardness Up
Due to federal law, all chemical sales are final. All other items must be returned, in original condition, within 30 days of purchase with a receipt. Inflatable items must be returned within 7 days. Returns will be issued with an in-store credit. All items returned may be subject to 15% restocking fee. Manufacture warranties must be handled by manufacture no exceptions. Angie's Pool & Spa, Inc. is not responsible for any spillage or damage of any kind. All clearance items sales are final, no refunds or returns.