Why did the proposed Red Sea–Dead Sea Water Conveyance project involve pumping water instead of siphoning it?
Why did the proposed Red Sea–Dead Sea Water Conveyance project involve pumping water instead of siphoning it?
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Red Sea–Dead Sea Water Conveyance - Wikipedia

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?