SpaGuard's pH Decreaser is a convenient solution for spa owners who need to bring their pH and alkalinity levels to the recommended range. By using this fast-dissolving granular formula, you can easily lower high pH and alkalinity in your spa water. This product gradually reduces the pH and alkalinity until they reach the desired level, preventing the formation of scale and cloudy water, which are common issues that arise when the spa operates at the high end of the pH scale.