Will this middle pipe freeze if left closed?

Jcsmith9

Well-known member
Feb 24, 2022
166
Birmingham/Alabama
the middle line going to the booster pump (which no longer works nor do I use anymore) valve is closed. Will this line freeze if water isn’t moving though it? It has been left closed in freezing weather the past 2 or 3 years. Just want to be safe. Would really be great to have this return move water in the pool. FYI the booster pump is broken at the bottom and shoots water out when I open the valve so I’m not sure what I need to do. Freezing temps will be here by Saturday.
 

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If you open up the valve with the red handle water will still flow through the pipe as long as the pool wall opening is open and not plugged. Not sure if the pump will leak but another option would be to bypass the pump altogether and join the two ends I circled in the picture with a 3/4" pvc threaded coupling and that will definitely work.
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I’m not a pvc expert by any means but if you could walk me through it I think I might be able to do it. So the ends you circled is the end of a hose from the booster pump. First those will need to come out right? Am I going to have to cut anything?
 
I’m not a pvc expert by any means but if you could walk me through it I think I might be able to do it. So the ends you circled is the end of a hose from the booster pump. First those will need to come out right? Am I going to have to cut anything?
To answer your question yes the pump leaks as it is cracked at the bottom. Also the return in the pool is currently not plugged. I just need exact steps of what to do after I remove the black hoses to do the plumbing.
 
See pictures below. You'll basically loosen "A" on both fittings and slide them back onto the soft white hose then pull back the white hose which is on the "B" part and disconnect it from "B" which leaves you with B in the pump which needs to be unscrewed and removed. Now the coupling fitting which has threads on both ends will receive the B parts on each side. When the coupling and the B parts are tightened up you'd slide the white hose back on on either side and then the A portion after that till it's one continuous hose. Just remember you need some Teflon tape only on the threads of the B part before you assemble.
https://www.lowes.com/pd/Charlotte-Pipe-3-4-IN-SCH40-COUPLING/5012906611
Screenshot_20241127_081744_Photo Editor.jpgScreenshot_20241127-082838_Lowe's.jpg
 

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So once I do all this water should be flowing through the middle return that was once the booster pump? Do I have that right? Should it be as strong a flow as the other two returns?

So once I do all this water should be flowing through the middle return that was once the booster pump? Do I have that right? Should it be as strong a flow as the other two returns?
I bought the 3/4 inch fitting and it’s to small. What size should I get?
 
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