Why might superchlorination be performed after a heavy bather load?

Superchlorination is a process in which a higher-than-normal dose of chlorine is added to the pool water, and it is often performed following a heavy bather load. This practice is crucial because, during times of increased usage, organic contaminants, such as sweat, oils, cosmetics, and other debris introduced by bathers, can accumulate in the water. These contaminants can consume the available chlorine, making it less effective at disinfecting the water and ensuring swimmer safety.

By superchlorinating after a heavy bather load, the chlorine levels are elevated sufficiently to oxidize and break down these organic materials. This process not only helps maintain clear and safe water but also protects against potential health risks associated with water that has been compromised by contaminants. Thus, the primary reason for performing superchlorination in this context is to eliminate organic pollutants that may harm water quality and swimmer health.