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   Glyn Moody (glynmoody@mastodon.social)'s status on Tuesday, 10-Dec-2024 23:16:25 JST Glyn Moody

   A new wave of #desalination startups argues that deeper is better - https://techcrunch.com/2024/12/10/a-new-wave-of-desalination-startups-argues-that-deeper-is-better/ "reverse osmosis equipment is dropped deep in the ocean, around 1,300 to 2,000 feet down, where naturally occurring pressure helps push water through the membrane. Only relatively small pumps are required to lift the fresh water out of the deeps"

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     Glyn Moody (glynmoody@mastodon.social)'s status on Wednesday, 11-Dec-2024 00:18:04 JST Glyn Moody

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     • Todd Knarr

     @tknarr well, they will find out the hard way if so...

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     Todd Knarr (tknarr@mstdn.social)'s status on Wednesday, 11-Dec-2024 00:18:06 JST Todd Knarr

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     @glynmoody I'm not sure they have the physics of that right. It's pressure differential that drives the flow, and it sounds like they're handwaving away the pressure from the water column in the output line. They may be depending on the siphon effect, but I'd want some independent analysis of the math behind this. If just running a vertical pipe to that depth doesn't result in flow out the top of the pipe, I can't see how this is going to work the way they say it does.