Thanks for the advice guys. I am planning on putting the pump upside down and plumbed directly to the bottom of my tank. Any air in the plumbing will rise - obviously not out the efluent side but at least through the intake side because it is a straight shot. Between that, and 40gals of water sitting on the bulkheads, I think I would be hard pressed to keep air in the impellor even if I tried. Even if it did shoot some bubbles on the first time I started it, it would be the last time because I would have to drain the entire display just to get air back into the line.
Cheers,
_ Chad
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Returning to the hobby after an eight year absence.
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