What is the ideal chlorine level range for swimming pools?

The ideal chlorine level range for swimming pools is between 1-3 parts per million (ppm) because this concentration effectively sanitizes the water, ensuring that it is safe for swimmers by eliminating harmful bacteria and pathogens. Maintaining the chlorine levels within this range helps to balance the water chemistry, promoting effective disinfection while minimizing the potential for skin and eye irritation. Levels below 1 ppm may not provide adequate sanitation, potentially allowing harmful microorganisms to flourish, while levels exceeding 3 ppm can lead to irritation for swimmers and may also affect water clarity and comfort. Thus, the range of 1-3 ppm is widely recognized as optimal for both safety and swimmer enjoyment.