A multi-purpose granular chlorine that when used as needed, provides a residual source of chlorine to keep water clean and clear. It also works great as a superchlorination treatment for everything from cloudy water to high combined chlorine levels and algae growth. It is extremely easy to use and can be applied without the hassle of pre-dissolving. When used as part of a BioGuard Care System or for other periodic maintenance, CLC3 will protect your pool from contaminants that cause cloudy water, musty odors and eye irritation. It also works to keep your pool free of algae growth and help eliminate disease-causing organisms when used on a regular basis.