What is the role of UV light in pool sanitation?

The role of UV light in pool sanitation is primarily to reduce pathogens and chlorine demand. UV light systems are used as a supplementary treatment method alongside traditional chlorine sanitization. When water passes through a UV exposure chamber, the UV rays penetrate the cells of microorganisms, effectively inactivating them and preventing them from reproducing. This significantly reduces the number of harmful pathogens in the water, enhancing overall water quality and safety for swimmers.

Moreover, by reducing the presence of pathogens, the reliance on chlorine can also be diminished. This is beneficial because it helps lower chlorine demand, leading to better chemical balance in the water. Lower chlorine levels can improve comfort for swimmers, as higher levels can cause irritation to the skin and eyes. Therefore, the function of UV light is crucial in modern pool sanitation practices, helping to maintain safe and clean swimming environments.