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Originally Posted by doch
So... Here's my latest idea in thinking about this.... let me know what you guys think. How about a closed loop, with a submersible pump in a self contained container that is as high as the tank, and as low as the bottom of the sump. Pump sits in the bottom of it, and no matter what, as long as the plumbing is good the level could only get to be as high as the top of the tank level normally is. My only concern with this: How much would it cost to build such a vessel? It would need to potentially have a great deal of pressure on the bottom of it, so maybe 6" Acrylic? How much does that stuff cost? Anyways, just a thought.
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Would the purpose of this container be to hold water if the pump ever breaks a seal or the pipe from the closed loop breaks?