Answer:

Free chlrorine will lower on its own with due time. It is best to allow the level to come down to around 5 ppm before reentering the pool. If you cannot wait, there is a chemical that helps to reduce chlorine levels called sodium thiosulfate. However, this chemical can present other problems such as causing pH shift. pH can be lowered using acid, typically a dry acid called sodium bisulfate because it is safer to handle. The pH being out of range is likely responsible for the cloudy water as well.