The core principle of UV radiation disinfection is that water is treated with UV light, which destroys bacteria, viruses, fungi, algae, and other microorganisms present in the water without the addition of chemicals. The UV lamp emits UV-C radiation with a wavelength of 253.7 nm. This radiation kills bacteria, viruses, and unicellular organisms, prevents their reproduction, and thereby significantly reduces the amount of disinfectant that needs to be dosed. As supplementary water treatment, active oxygen or salt electrolysis disinfection is recommended. The lifespan of the lamps is 9,000 operating hours. The device features D50 and D63 glue-type connections. Pontaqua UV-C 75 pool water disinfection system. Installation is recommended after the filter tank in a bypass branch.