What parameter defines the safe level of free chlorine in a spray pad?

The safe level of free chlorine in a spray pad is defined as between 2 to 5 ppm. This range ensures adequate disinfection while minimizing the risk of irritation to users. Maintaining free chlorine within this level is crucial for effectively controlling pathogens and ensuring a safe environment for patrons. It provides sufficient chlorine residual to combat bacteria and other contaminants that may be introduced to the water from users.

While levels lower than 2 ppm may not provide effective sanitation, levels exceeding 5 ppm can lead to unpleasant odors and skin irritation, deterring users from enjoying the facility. Thus, the specified range balances effective disinfection with user comfort, making it the standard for spray pads.