Swimming pool water requires some form of “purification” in order to kill bacteria and other micro-organisms that could be potentially harmful to the pool equipment or more importantly, those swimming in the pool itself. Adding chlorine (in the form of sodium hypochlorite) to pool water is the most common form of sanitation. Following, is an explanation as to what occurs when you add the appropriate amount of chlorine to pool water, which ultimately leads to “Breakpoint Chlorination”.
When chlorine is added to water for normal residual chlorination it combines (reacts) with ammonia and organic contaminants found in pool water (sweat, urine, skin cells, and other organic matter) forming “combined chlorine” compounds commonly called “chloramines”. The terms “combined chlorine” and “chloramines” are often used interchangeably and refer generically to a family of chlorinated compounds. It is the build-up of combined chlorine that swimmers will most often notice in a […]