when it comes to plumbing, keep it simple. Ball valves and union fittings are a good idea, allows for easy change out of parts etc if need be. Some suggest check valves, I don't use them personally, just leave enough room in your sump for back flow if the power does go out and be sure to drill anti syphon holes in your return line (just below water level)....
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75 gallon with 20 gallon sump in the works.
R. Bacchiega. Tattooer
I didn't smack you, I simply High Fived your face.
I've got so much glue on my pants it looks like a Friday night gone horribly wrong.
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