PacifiClear F022005040PC Cal-Shock Pool Chemical, 5 lb Pail, Granular (Pack of 8)

Pools and spas are extremely vulnerable to illness causing bacteria or other contaminants introduced into the water by bathers and spa users. O-ACE-sis® Cal-Shock™™ granules are not only easy and convenient to use in the chlorination of swimming pools, disinfection of drinking water and for sewage and waste water applications, but can also be used in various other industrial applications. In solution, this product kills harmful bacteria, aids in algae control and helps keep the pool clean and clear. Cal Shock granules also leave beneficial chlorine residual in the water that continually destroys organic contaminants entering the pool. Cal-Shock™ granules allow bathers to enjoy the benefits of a healthy pool and spa environment. When used as directed, it provides effective bacterial, fungicidal and algaecide control. Online purchases are in packages of 8.