Lithium Hypochlorite

Also Known As:

A colorless, granular substance, lithium hypochlorite (LiClO) is used as a pool disinfectant and algaecide. As such, it controls the growth of algae, bacteria and mildew in pools and spas.

It is introduced to the pool water via the skimmer, where it dissolves and then combines with the water through the filtration system. Lithium hypochlorite is available in a variety of pool products readily available from pool supply retailers.

Lithium hypochlorite is primarily used to shock pool water that has large algae growth or is cloudy. Typically, one pound is used per 10,000 gallons of water. However, this ratio may be increased in extremely contaminated water. In normal conditions, it takes about 60 seconds for the compound to dissolve completely. Because it is free-flowing, it delivers chlorine efficiently and at maximum levels. In addition, the chemical is safe for sensitive surfaces, including vinyl, fiberglass and plaster.

When used regularly, lithium hypochlorite can increase the efficiency of filters and pumps, reducing clogs. This can mean fewer backwashes and better maintained equipment. Because it quickly dissolves, lithium hypochlorite won’t cause cloudy water, residue or scale. When the water is balanced, the chemical won’t increase pH, total alkalinity or calcium hardness. It also has no effect on stabilizers containing cyanuric acid.