Do people really pee in pools? Researchers from the University of Alberta decided to find out. They inspected multiple pools in two different cities and found, on average, the pools contained 0.009 percent urine. Hot tubs have a higher percentage.
The next time your pool disinfectant is low, and you think it is no big deal, please consider all of your customers. They are swimming around in other people’s (and maybe their own) urine. It is terribly important as aquatics professionals and lifeguards to keep our pools clean
The full research can be found here: