Water from the tap, rain, river, lake, well or groundwater, for domestic or agricultural use could be disinfected by traditional methods such as filtration, distillation, ultraviolet lamp or boiling. However, those methods have the drawbacks of limited output quantity, and the water can't be used on line immediately.
Ozone is up to 2,000 times more efficient than chlorine when used as a disinfectant
Ozone can destroy microorganisms that are resistent to chlorine
Ozone can also remove odors and colors (that chlorine is incapable to do)
Ozone use is approved by the FDA and guided by the EPA in the United States