• Sam_Bass@lemmy.world
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    2 days ago

    If I know there is even 0.00000000000000000000000001% piss in tower full of water I ain’t drinking it

    • Bgugi@lemmy.world
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      2 days ago

      Your acceptable concentration is about 1*10^-28.

      The world’s largest freshwater lake is lake Baikal, with a volume of 22995 km^3. Adult humans have a bladder volume of about 350 ml. If a single person pees in this lake once, that’s a concentration of about 1.5*10-17, or about 150 billion times too pissy.

      Reverse osmosis and distillation have fairly complimentary strengths and weaknesses. RO removes about 99% of contaminants, distillation removes about 99.9%. two passes each of RO and distillation and your treated single-piss lake Baikal water is now down to about 1*10^-27 piss, or still about 10x too pissy for you.

      This analysis assumes that you consider piss to not include the water molecules that carry it. If you have a “once piss always piss” policy, I’d be willing to bet that a pretty significant portion of water to have gone through an animal at least once.

      • Sam_Bass@lemmy.world
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        2 days ago

        My piss goes to a leach field by way of a septic tank. So no worries about that. Got municipal source repumped from a station about 10 miles west, so I dunno what the pipe conditions are here yet. Have only had to replace one water heater line so far

      • antimidas@sopuli.xyz
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        2 days ago

        Yep, at those percentages there’s likely an amount larger of piss in every breath you take indoors. Always remember, it’s the amount that kills (or tastes like piss)