SpaGuard Calcium Hardness Increaser is a fast-acting, granular product that effectively increases the calcium hardness level in your spa water. Low calcium hardness can cause water to become corrosive, which can damage your spa's equipment, fixtures, and even the spa shell. With the SpaGuard Calcium Hardness Increaser, you can easily prevent this issue and maintain your spa's optimal performance. This product is easy to use and can be added directly to your spa water. Simply follow the instructions on the label and add the recommended amount of product to increase the calcium hardness level to the desired range. The SpaGuard Calcium Hardness Increaser dissolves quickly and evenly, ensuring that your spa water is properly balanced. The SpaGuard Calcium Hardness Increaser is also compatible with all spa sanitizing systems, including chlorine, bromine, and biguanide. This means you can use it with your preferred sanitizer without any issues.
