Flow From One Return Not Steady

nobbyv

0
Jun 29, 2010
29
We have a 36x18 vinyl liner inground that has two AquaGenies (skimmer/return in one) on one of the long sides and a normal 1.5” return on the other. We installed it four years ago. Last year, the normal return seemed to have a drop in the flow rate coming from it. With the other two returns open, it’s hard to even feel anything coming from it. If I partially close the valves to the other two returns, I can coax it into flowing, but even then it’s not steady: it spurts and squirts with a lot of bubbles. If I close the other two returns completely, it seems “normal”.

I am guessing I have a minor crack or break in the return plumbing. I bought a leak test kit, but before partially draining it to access the return, I wanted to see if there’s another possibility I haven’t thought of.
 
Is your pool plumbed with all schedule 40 PVC or was flex PVC used in places?
 
There is some flex PVC.
This is what can happen to flex PVC as your ground shifts.


Flex_PVC_Hose_Kink.jpg



Flex_PVC_Pool_Pipe_Collapse.jpg
 
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