Fun fact - well maintained pool water has barely a detectable scent of chlorine. If you go to a pool that reeks of chlorine, what you are really smelling are chloramines. That is the result of chlorine combining with pee and other stuff. It's one of the reasons a poorly maintained pool is so irritating for your skin and eyes.

I sympathize, though, with the maintainers of public pools. A nearly constant bather load comprised mostly of children emptying their bladders at will. It's probably a losing battle. And then periodically one of the little brats will poop in the water. God bless the maintenance guy who has to fish that out and then shock the pool into the safe zone again. Yuck.