Chlorine & Shock
Chlorine is the most cost-effective way to sanitize your pool. It kills bacteria, germs and viruses and oxidizes as it sanitizes, helping to keep your pool clear. Stabilized chlorine is used as a disinfectant in automatic chlorinators.
Unstabilized chlorine, or shock, is used for weekly shocking. It is used to sanitize the water quickly after heavy use and to oxidize chloramines. Unstabilized chlorine provides a quick, high concentration, killing bacteria and other nasty things in the water. It is also helpful in controlling algae, destroying organic contaminants and restoring clarity.