When performing superchlorination, what is the minimum level of free chlorine required?

The minimum level of free chlorine required for superchlorination is 10 ppm. Superchlorination is a process used to significantly elevate the free chlorine level in the pool water to effectively eliminate contaminants, chloramines, and organic matter. This elevated level helps to ensure that the chlorine is potent enough to break down these substances and maintain a safe and sanitary swimming environment.

Reaching 10 ppm is critical as it allows for the oxidation of chloramines, which are responsible for unpleasant odors and eye irritation. This high level also facilitates the disinfection of any pathogens present in the water. While higher levels of chlorine could be beneficial for more severe contamination issues, 10 ppm is generally considered the standard minimum required for effective superchlorination.