And hope there isn't a school trip up stream... | Hacker News

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		fileoffset on July 20, 2018 \| parent \| context \| favorite \| on: Urine, Not Chlorine, Causes Red Eyes in Pools (201... And hope there isn't a school trip up stream...

megaman22 on July 20, 2018 [–]

Or a dairy farm, or a beaver dam or...

rascul on July 20, 2018 | [–]

I always consider what is upstream. Same when I fish.

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