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A comment on Pee, Not Chlorine, Causes Red Eyes from Swimming Pools: CDC (2015). Parent comment

Re:Pee, Not Chlorine, Causes Red Eyes from Swimming Pools: C... by strangemonad on Wednesday February 20, 2019 @11:31AM (#19209200)
The quantity of urea would be to low unfortunately for any indicator compound. https://youtu.be/S32y9aYEzzo
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Re:Pee, Not Chlorine, Causes Red Eyes from Swimming Pools: C... by eesmith on Wednesday February 20, 2019 @11:43AM (#19209326)
And Snopes, at https://www.snopes.com/fact-check/piscine-of-the-crime/ :

> No matter what your parents might have told you, there isn’t any magical chemical that when added to a swimming pool will reveal the presence of urine in the water by producing a brightly-colored cloud:

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