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Old 07-16-2012, 12:46 PM   #1
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Plumbing Questions

I am building a new sump and my current project is plumbing the new pump to the return lines. I spent waaaaay to long in the pvc isle at menards yesterday. I think that I have everything that I need (fingers crossed). I have a couple questions.

Does it matter where I install gang valve (i think that is what it's called. It is the thing that prevent backflow of water in case of power failure) ? I was planning on putting that thing about 3 inches above the outlet of the pump. I know that installing one of these devices reduces the flow. I am just not sure if that is too close, or if putting it at different places affects the flow differently.

Can anyone provide any insight?
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Old 07-16-2012, 01:19 PM   #2
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It's called a check valve and I put mine about 2-3" before it turns to go into the tank.
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