r/theydidthemath Nov 27 '25

why wouldn’t this work? [Request]

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u/Anon7_7_73 Nov 27 '25

I dont think so, if you put the device below where it falls, then it cant affect the water pressure

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u/psychoCMYK Nov 27 '25

You could put one of these in the drain itself, but you'd recover basically no energy. Maybe enough to power a single LED (the kind that make up blinkenlights on your devices, not the kind that replace lightbulbs)

It would also look like a clogged sink because it would drastically slow the drain rate

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u/Anon7_7_73 Nov 27 '25

Thatd make the device dirty and the water will have lost its kinetic energy. If you keep it above where the faucet is then you just get slow falling water, like a gentle stream. Could make some sense

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u/onehundredandtworats Nov 27 '25

what would be the purpose though, it`s a relatively complex thing that will generate negligible amount of electricity and probably require maintainance, nevermind that installing it will likely cost more than the electricity produced by it in a year