UV lights have been around for some time, in fact in 1935 William F. Wells, a Harvard University sanitary engineer, demonstrated that UV light could inactivate airborne infectious organisms. From there, interest in the scientific sector grew quickly and in 1955 UV light was used to disinfect drinking water in water treatment plants in Switzerland and Austria.
Today UV air disinfection units are commonly used in hospitals, factories, and other enclosed spaces. UV disinfection is also used for processing water treatment, effluent water treatment, and Legionella prevention.
UV Systems are generally required in indoor pool areas. The operative words are “enclosed spaces” UV systems are not generally added to outdoor pools although Code in some states requires them to be added to Splash Pads.
We believe that all indoor bodies of water should have a UV installed due to the off gassing of chloramines from the surface of the water, and the benefit of a secondary disinfection system for swimmer safety. Here are the 3 areas that I would mention to a prospective client as to why they would benefit from a UV system.
Swimmer and pool attendant safety. Chloramines (combined chlorine) can be harmful to people in and around the water and can result in what is commonly called “Lifeguard Lung”. Prolonged exposure can lead to serious lung and bronchial deterioration.
Building protection. Chloramines are very low in pH and can end up causing rust on interior doors, bulkheads and other metal structures around the pool. HVAC (air movement systems) can be rendered inoperative after long exposure to the fumes, and they come with a pricey tag.
Swimmer experience. Adding a UV system will clear up both the air and the water resulting in a greatly improved environment for all.
Yes, they can be an expensive addition but in the long run are definitely worth the cost.