How long do baby wait after pool is shock with chemicals?

Shocking a swimming pool refers to the application of large quantities of chlorine (superchlorination), non-chlorine shock or hydrogen peroxide. Typically 5-10 times the normal dose is used, based upon actual conditions and needs. The purpose of this large dose is to break down the combined chlorine, organic waste and contamination and re-establish a positive level of Free Chlorine. Shocking must be repeated, until such time as a stable Free Chlorine reading can be achieved, for at least a few hours. Make sure that a Free Chlorine capable test kit is being used, in order to know when breakpoint chlorination has been achieved. Products such as liquid chlorine, sodium dichlor, lithium and calcium hypochlorite, non-chlorine shock and compounded products are used for this purpose. None of these products can be used in a biguanide-maintained pool. Only concentrated hydrogen peroxide can be used to shock these pools. A pool should be shock treated at the first signs of algae, after heavy rainfall, after periods of heavy bather usage and at the onset of a loss of water clarity or quality. Another common practice is to shock treat the pool every Sunday evening. Typically, this is after a period of high bather demand and will help to re-establish the sanitizer level. A periodic shock treatment helps to prevent the development of sanitizer-resistant microorganisms