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Why did the proposed Red Sea–Dead Sea Water Conveyance project involve pumping water instead of siphoning it? (lemmy.ml)
submitted 9 hours ago by cypherpunks@lemmy.ml to c/nostupidquestions@lemmy.ca
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The surface of the Dead Sea is hundreds of meters below sea level so it seems like pumping would only be needed to prime a siphon and then it could keep flowing. What am I missing?

https://en.wikipedia.org/wiki/Red_Sea%E2%80%93Dead_Sea_Water_Conveyance

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[-] smuuthbrane@sh.itjust.works 4 points 9 hours ago

My guess is pumping losses. Essentially there's friction moving water through a pipe, and the distance would be so long as to make said friction higher than the available suction. It would probably just start cavitating and destroy the pipe.

this post was submitted on 04 Dec 2025
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