Otu esi eji chlorine ujo: na ibe a, anyị na-aza ihe ngwa ngwa chlorine bụ, kedu ihe chlorine na-awụ akpata oyi n'ahụ bụ, mgbe ị na-eji chlorine ujo, gịnị bụ ọgwụgwọ ujo na ọdọ mmiri, otu esi eji chlorine, otu esi etinye chlorine shock, granulated. ọgwụgwọ chlorine ujo, wdg.