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Do you pee in the shower?
(lemmy.world)
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this post was submitted on 05 Mar 2026
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I've done the maths!
Shower water /is/ normally collected in grey water systems, but piss would be so diluted as to be a negligable contaminant. A shower uses roughly 70 litres of water. An average human bladder voiding is 400ml, so that works out at 0.57% piss in the grey water collected in a single shower. Negligable - but for fruit trees, a fertiliser.
Mmm, nitrogen