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Infinity edge pump draws air

Posted by pat3856 (My Page) on
Sun, Sep 2, 12 at 22:54

I have a 60000 gallon pool 15x40' with infinity edge with catchment at one end. My problem is that after the system is turned off at night the basket for the pump draws air so there is condensation and bubbles on lid the next morning, and basket filled only halfway. I have replaced both check valves to high and low pressure sides, and replaced the o ring and lubed lid for basket/pump. There are no visible leaks. The pool has its own pump and I have had no problem with it. I have been monitoring the infinity edge pump etc and it works fine when u start it back up in the morning but takes 20 secs for pump to fully prime.
I am totally going crazy over this.... anyone know what I can do now???

Follow-Up Postings:

RE: Infinity edge pump draws air

How long has it been doing this?
What kind of pump?
How far are the catch basin's drains?
How far away are it's returns in the pool?


RE: Infinity edge pump draws air

This is a pentair whisperflo 3/4 hp pump. Just started doing this after 4 years, about 50 feet to catch drain to pump. returns 50 feet from pump and 15 feet from drain.Have been monitoring and seem to think pump or inlet or outlet has leak.

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