Chlorine occurs naturally as one of the basic building blocks of matter. It possesses powerful disinfecting and bleaching capabilities that we harness for a wide range of industrial and domestic ...

A good chlorine level is between 1.0 and 4.0 parts per million (ppm), while the pH should be between 7.2 and 7.8. Together, they keep bad bacteria at bay: If pH goes up too high, chlorine's germ ...