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We built a large (55ft long) concrete pool with a 30 foot infinity edge less than 3 years ago. There are 3 Hayward pumps, one for the filter and two for the infinity edge. The filter has been showing too high pressure, up to 60psi (when first turned on it is at 28psi but after 5-6 hours it goes to 40psi). It has burnt up two pumps because we didn't know there was a problem. Instead of continuing to replace motors and have the potential for the filter exploding what do I do to solve and find my blockage. I have just had the brick wall that hides the equipment torn down because I and my pool maintenance company felt that the slowly sinking wall may have been the culprit. All plumbing is exposed and there are no visible leaks, crushed or flatten pipes and the pressure is still there, just today the pump I replaced 3 weeks ago has burnt up. How or who do I go to to help me find and solve this problem. Also, both infinity pumps won't hold a siphon, if turned them off for more than a few hours they both have to be primed again to run, obviously there is an air leak. Hopefully, with some tests a leak detector company can find the problem. The pool company I used won't return phone calls (they may be out of business). I have a fortune tied up in this beautiful pool and don't know who to turn to. Please help! Sincerely, Frank Arey, Charlotte,NC

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  • Pete May 11, 2010

    what kind of filter is it?

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Hi .. with the pumps loosing prime, yes, there is obviously a leak ,, if the pumps were sicking air into the leaf trap just before the pump , then I would look for the leak in the sucking lines, skimmer, bottom, cleaner. BUT you say it leaks out after shut down ,, could be a seal or gasket at the pump or filter .. or a blockage and pipe separation in a return line. If there is a blockage you may burn out pumps, blow the filter or blow a return line apart. Check the flow at the pool return nozzles, make sure all return valves are full open. Try selectively opening and closing selector valves to see what return line makes the pressure increase the most. IF the presure problem persists I would temporarilly add a 2inch line to the return side of the filter and run it to the pool on the ground, so I could have unrestricted circulation and save the water condition and pumps and be able to troubleshoot the pressure problem .. IF this bypass pipe does not relieve the pressure situation ,, maybe you need to evaluate the size of the pump for the application .. thoughts?

Posted on May 09, 2010

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