UV and Ozone are two popular methods for sanitizing hot tub water, each with its unique advantages. UV (Ultraviolet) systems use UV light to kill bacteria and other microorganisms as water passes through the system. This method is highly effective at destroying harmful pathogens without adding any chemicals to the the body of water. The benefits of UV systems include instant bacteria elimination and chemical-free sanitation. Ozone systems, on the other hand, generate ozone gas, which is injected into the water to neutralize contaminants. Ozone is a powerful oxidizer that helps reduce the need for chlorine or bromine, leading to softer water. While both systems are effective, UV is better at instantly killing bacteria, whereas Ozone is excellent for ongoing oxidation and reducing chemical usage.