NoNamesLeft
Member
Congrats on your new pool!!!!! I’m sooooo guilty of living a bit vicariously through this thread! Spring can’t come soon enough for me.

Congrats on your new pool!!!!! I’m sooooo guilty of living a bit vicariously through this thread! Spring can’t come soon enough for me.![]()
I do this all of the time! The only way to really get what you need. I also do it with replacement parts "I need one of THESE" while showing them what I am looking for IF I cannot find it on my own.I’m taking the item im trying to fit with me!
They have every piece but *that* one. You’ll find the right spot and it will be an open hole through to the other side.I’m going one more time, and this time, I’m taking the item im trying to fit with me!
Kelly, is it a Hayward skimmer? I found some other posts talking about a “proprietary Hayward union connector” being used for their exterior threads.OMG. I am so aggravated! I finally figured out why my ball valve would not work with the new skimmer when it worked with the old IDENTICAL skimmer! Bless their hearts, my installers thought they were being helpful and they GLUED the hose barb in place! I did not use the hose barb in the old skimmer, which enabled me to craft a connection with regular PVC fittings. I also would not have used it in this one... if it wasn’t firmly glued in place.
Well, Kelly, just buy the larger threaded part that will fit the outside portion under the skimmer, and reduce it down past the barb!
That sounds like it would work, right? Except the outer threaded ring is a non-standard size! 2” is too small, 3” is way too big, and if they make 2.25 or 2.5 standard PVC fittings, no one around here has ever heard of them.
2 days I’ve spent trying to work out this plumbing. How did I finally figure out the issue? That long story would involve pulling all the old bits out of the trash... and you know they were on the bottom of the pile.
So, I have a half filled pool, 90 degree days, no plumbing, and I am currently drowning my sorrows in Cadbury eggs.
Kelly, is it a Hayward skimmer? I found some other posts talking about a “proprietary Hayward union connector” being used for their exterior threads.
I found a link to this one in another thread:
Amazon.com: Hayward SP1500UNPAK2 1-1/2-Inch Socket ABS Quick Connect Union Pak Replacement for select Hayward Pumps/Filters and Chlorine Feeders, Set of 2 : Patio, Lawn & Garden
Amazon.com: Hayward SP1500UNPAK2 1-1/2-Inch Socket ABS Quick Connect Union Pak Replacement for select Hayward Pumps/Filters and Chlorine Feeders, Set of 2 : Patio, Lawn & Gardenwww.amazon.com
The 1.5 on the link I shared is the slip end (top piece in the Amazon picture) — designed for a plain 1.5in pvc pipe to be glued into. It doesn’t give measurements on the other side (bottom piece on the Amazon picture - the side that in theory would screw onto your exterior threads) — but that has to be bigger than 1.5in because it fits over the 1.5 slip end piece.It is, but the outer ring I’d need to connect to is about 2.5“. I wish I was dealing with 1.5”... I’d already be filtering!
The 1.5 on the link I shared is the slip end (top piece in the Amazon picture) — designed for a plain 1.5in pvc pipe to be glued into. It doesn’t give measurements on the other side (bottom piece on the Amazon picture - the side that in theory would screw onto your exterior threads) — but that has to be bigger than 1.5in because it fits over the 1.5 slip end piece.
I could be wrong, but if it’s a Hayward skimmer and it’s not a common size that it would make sense if it was designed for the Hayward union to fit onto.
To add -
I don’t have a Hayward union to test, but I do have a Hayward skimmer and some Pentair unions.
I measured the outside diameter of the outlet on the bottom of my skimmer at ~3 inches. I also measured the inside diameter of the Pentair 1.5 union screw-on fitting end at ~ 3 inches.
Wish I could give you something more concrete but I think odds are good that’s what you’re looking for.