I'm finally ending my love-hate relationship (almost entirely hate) with a Pentair Pinnacle 3/4 HP for my Endless Pool. After replacing the motor and getting the seals right (thanks to everyone's help earlier), I noticed a slight leak coming from the housing. Close inspection revealed a hairline crack. I tried using plumbers epoxy as a temporary fix, but not surprisingly it wasn't much of a fix. I decided to just get an entirely new unit, a Pentair Stainless Steel SuperFlo.
THE ISSUE: I'm trying to replicate the 1.5" PVC fittings from the PVC valve to the pump. There is the valve, then a PVC union slip and then an elbow. The problem is that I cannot find the exact union (did a search and made numerous inquiries to pool supply houses for the markings on the union, to no avail). I found a similar union (Lasco) at Home Depot, but when I tried to connect the one half of the existing union with the half of the new union, I noticed the threads would not align. Now I'm stuck as to how best/easiest to resolve this if I can't find the exact match:
(1) Is there enough room right before the union to cut and solely add just the new union?
(2) Is there a way I can remove the half of the union closest to the pump (glued in) and glue to my new pieces?
Anything else I could do? I have attached a picture to help better illustrate. Note the PVC union says: 240-121 DN40 1-1/2"