This seems brilliant, I wonder what will be the efficiency of such system, it seems like it could almost power itself as long as you supply it with salt water (and have the Fresh water column outlet lower than the inlet). What am I missing?
Hi, could you expand on your question (or questions) in the main post? The more clear your questions are, the easier it’ll be for someone to address them. Thanks!
The original post has an enclosed link which you should definitely check out, but for your TLDR needs - here's the 
I could definitely say a lot about this, but I need more details on the system you're envisioning.
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