Novice pool owner here. I am told I own the above pump. I had a leak in my O ring key number 18 on the diagram. I searched high and dry for an authentic U9-375 O ring but could not find one and ended up buying some generic online. It has to be wrapped around the cover lid which I find odd for an O ring. The pump housing has dimples which I feel the O ring should fit in. Thats how I remember the old O ring working. Has anyone had this problem and where to buy the real deal O ring which will fit properly? I called Pentair and they helped me locate a store in my local area who claimed to have the genuine O ring but it turns out the store lied to Pentair and Pentair is pretty clueless? So where to get this O ring?
There are lots of fakes and knockoffs online including on Amazon.
The problem is when I turn off the pump, water shoots out the side of the lid (which is new). Yes I lubed it.
Thanks in advance.