Swimming Pool And Tank UV’s system uses ultraviolet (UV) light to disinfect water by damaging the DNA of microorganisms. Like bacteria, viruses, and algae, making them unable to reproduce. This method is a sustainable, chemical-free or low-chemical alternative/complement to traditional sanitizers, reducing chlorine use by up to 80%. Also minimizing skin and eye irritation. Pool water is circulated through a special chamber where it’s exposed to powerful UV-C light, which inactivates harmful contaminants instantly without altering the water’s composition.