PSA: Hayward Tristar Union Fittings (SPX3200UNKIT) are 2-1/2" OD (listed as 2" fittings)

jeqwerty1969

Gold Supporter
May 3, 2020
30
Inglewood, CA
So, I did a thing, and now I need to cement in a new union, which for an SP3220 is Hayward SPX3200UNKIT and every source lists it as a 2" union. The unsettling part is that my unions measure 2 1/4 ID. In a few days I'll find out. The local supplier wants $50 for a pair of them, so filtration will have to wait a couple more days, but I'm stocked up for a SLAM so no worries ;) I ordered a 2.5" slip coupling as well... hopefully it's all i need.

I'll keep you posted, perhaps this will be a PSA.

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jeqwerty1969

Gold Supporter
May 3, 2020
30
Inglewood, CA
Good news, the 2-1/2" slip coupling was perfect, meaning the SPX3200 union fitting is 2.5 inches outside diameter:
20200521_124538-edit.jpg

No leaks on the new joint at the 24 hour mark (purple primer + christy's blue glue). I still have one leak from the small bulkhead fitting o ring on the cartridge filter, but I used generic EPDM o rings there so hopefully the specific one will fix this:
20200521_131657-GENERIC BULKHEAD ORINGS.jpg

Also getting 20 PSI with brand new cartridges and I'm not sure if that's out of rang or not:
20200521_131714-edit.jpg
 
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kimkats

Mod Squad
LifeTime Supporter
Jul 10, 2012
45,747
Tallahassee, FL
Not sure of your pressure but it is lower than your high pressure so............is the flow out of the returns good as ever? Is the skimmer working like before??

HAPPY day on the unions fitting!!! I bet your heart sang when you saw it working!!

Kim:kim: