If you had to guess, how do you think the flotation tanks are cleaned? Did you think we drained all the water out and filled it back up? Well, what we actually do at the Serenergy Express Relief Center® is we employ a mechanism in which ozone is infused into the water along with cells filled with photons due to our 24/7 UV purification system, providing a disinfected and fresh new feeling everytime it is used. This means the water is always renewed before and after each session.