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Too many people pee in swimming pools - and it's dangerous - The Jerusalem Post
Is the water in swimming pools contaminated with fecal matter? - Quora
Scientists know that you pee in the pool
Is it really cleaner to swim in a pool or the lake? — Swim Drink Fish
13 Things You Should Know Before You Get In A Hot Tub
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Everything You NEVER Wanted To Know About Pee In The Public Pool
Pools, Spas and Splashpads - Southwestern Public Health
What happens if you pee in a hot tub? - Quora