What is the acceptable range for free chlorine levels in pool water?

The acceptable range for free chlorine levels in pool water is 1 to 3 ppm (parts per million). This range is ideal for ensuring effective sanitation and disinfection without causing irritation to swimmers' skin and eyes. Free chlorine is a critical sanitizer that helps to eliminate harmful bacteria and pathogens present in pool water. Levels lower than 1 ppm may not provide adequate disinfection, leading to potential health risks, while levels above 3 ppm can lead to unpleasant conditions for swimmers and damage to pool equipment and surfaces. Thus, maintaining free chlorine within this range is essential for pool safety, water clarity, and overall swimmer comfort.