Originally Posted by
WorldLux
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As a longtime swimmer with multiple daily trainings, I can only give one specific advice: The more intense the smell of "chlor", the more pee is in the water. The smell results from the reaction between the water treatment and pee.
The smell was usually stronger in school swimming pools (where we trained a lot). But go to a freshly cleaned pool in the morning: There's barely any smell.
Don't worry too much about hygiene at hotel and open-air pools. Take a proper shower afterwards and you'll be fine.
Yep! When there's lots of available chlorine (which you want) there is little smell. But if it smells strongly, you're not smelling chlorine, you're smelling
chloramines - that's essentially used chlorine, and it's not available for sanitation purposes anymore.
More in depth explanation for readers of this thread
here