What is Combined Chlorine?
Combined Chlorine is that fraction of the total chlorine that is present in the form of Chloramines or organic chloramines. In other words: Chlorine that is bound to other elements or organic compounds but is still an effective disinfectant. Combined chlorine has been found to be more effective than free chlorine in controlling post-disinfection bacterial growth. Chloramines are an example of combined chlorine.