This seems like something that should be true, but I think I remember seeing a Mythbusters episode where they decided it didn’t make a difference. That show was more about entertainment than science, so I wondered if there was a more rigorous study done? I’ve definitely seen splashes of water(?) come out from flushes so that alone seems to argue for closing lids.

  • Deebster@lemmyrs.orgOP
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    1 year ago

    You may be right; it was about 20 years ago I watched it. Perhaps their conclusion was it happens just as much when the lid is down.