I worked at a pool as a lifeguard instructor throughout high school and college. The aquatics director used to try to explain this to people who would blame her

I worked at a pool as a lifeguard instructor throughout high school and college. The aquatics director used to try to explain this to people who would blame her for misbalanced chemicals when there was a strong chlorine smell. It would always get so much worse as soon as the pool got busy, like during a swim class or children’s swim lessons. Getting people to shower before entering the pool was a hopeless plight.