• yesman@lemmy.world
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    10 days ago

    YSK: manholes are dangerous. Never mind the nastiness and falling hazard. Many are cast-iron and because of the rust, the interior can be a low-oxygen environment. And that’s not the only way the air can be too fouled to breathe safely.

    If you’ve ever seen professinals entering manholes, they’ll be using a ventilation system to ensure fresh air and safety.

    EDIT: this isn’t just about breathing, sewer gasses can be fire/explosion hazards too.

    • empireOfLove2@lemmy.dbzer0.com
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      10 days ago

      Its not so much iron as it is all the organic matter that gets run into most drainage systems that decays and consumes oxygen while doing so.

    • rose56@lemmy.zip
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      9 days ago

      Some guys did use this here while searching for ancient stuff, one died while 2 other escaped. It looks like an old woman was giving them info on where the ancient stuff are, which was wrong. It turned out, she was wrong.

    • Midnight Wolf@lemmy.world
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      10 days ago

      ‘you know what we should do for our infrastructure? a network of tubes [the internet is not a big truck, it’s a series of tubes] that can kill you and cause explosions, underneath the whole city’

      ‘bill, the is the best idea you’ve had since installing lead pipes, a real visionary’

        • wonderingwanderer@sopuli.xyz
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          10 days ago

          Even when that was common, there was a gutter that ran along the sides of the streets. People wouldn’t just dump shit in the middle of the road, they’d pour it in the gutter and the rain would wash it away.

          Still not the best thing ever, but it’s not like people had to wade through ankle-deep piss and shit just to get to the store…

      • cecilkorik@lemmy.ca
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        10 days ago

        Yeah, it’s a wild idea, but the number of lives they’ve saved and extended far outweigh any danger. Sewer systems might actually be what increased average human lifespans more than almost anything else in history.