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No Connection, No Flush (lemmy.ml)
submitted 1 year ago by to c/programmer_humor@programming.dev
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[–] 1 point 1 year ago (2 children)

Toilets can appear to have flushed fully, but still have...material...stuck in the U-bend that hasn't completely evacuated the toilet. A subsequent flush won't work, even though the water in the bowl is clean.

Ask me how I know.

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  • [–] 1 point 1 year ago* (last edited 1 year ago) (1 child)

    Well, I suppose it is the kind of system where a lot of weird non-deterministic things can happen.

    What kind of sensor are we thinking of here? Optical? I know it's a real issue to find something that doesn't foul or misread even in the simpler application of an RV septic tank.

    I wonder if you could just put a window in the U-bend for manual inspection. It's supposed to be full of "clean" water most of the time anyway.

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  • [–] 2 points 1 year ago

    Yeah, not to mention, adding any sort of electronic components to the thing would be dicey at best. A lot of bathrooms don't even have power outlets anywhere near the toilet.

    I'd prefer some sort of pressure-activated valve or something, but this is an engineering challenge that's beyond my meager skills.

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