Fittings stuck

outdoor

Well-known member
Jul 29, 2013
146
#1
Hello,

Last night i started to assemble my pool equipment. I have several pool fittings that seem to get stuck. I tried cleaning off a bit before trying to screw them together, but once i start to screw them together, they seem to get to a point where they get stuck. They won't tighten any more (still leak) and now very difficult to remove.

Any suggestions as to what type of lubricant, silicone spray or something i could use to help loosen and assist in re tightening ?

Liquid Wrench
PB Blaster

I think these are oil based, not sure if they should be used on PVC Pool fittings?
 
OP
OP
O

outdoor

Well-known member
Jul 29, 2013
146
#3
ok, really so each plumbing fitting/valve should have teflon tape (or dope). Hmmm, did not realize that since when it was installed, only the more permanent fittings had that.

So, any suggestions on what to use to help get unstuck so i can then add tape?
 

Richard320

TFP Expert
LifeTime Supporter
Jan 6, 2010
20,330
San Dimas, CA (LA County)
#4
ok, really so each plumbing fitting/valve should have teflon tape (or dope). Hmmm, did not realize that since when it was installed, only the more permanent fittings had that.

So, any suggestions on what to use to help get unstuck so i can then add tape?
Not really. Plastic screw-type plumbing fitting threads often get deformed, which is why they stick. Maybe some silicon spray if you have it, but I wouldn't go buy any just for this. Have you ever thought of cutting things out and replacing them with a union that is designed to be dismantled? Is this a union, by chance? If so, maybe the O-ring is missing?
 
OP
OP
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outdoor

Well-known member
Jul 29, 2013
146
#5
Yes, these are unions and all have o'rings. where pipe connects to pump. Where flow valve connects to pipe that goes to heater etc.... All meant to be removed and reconnected. A bit expensive to cut out and replace.
 

domct203

Bronze Supporter
LifeTime Supporter
TFP Guide
Jun 3, 2015
3,959
CT
#6
Try silicone o-ring lube.

If the threads are distorted or galled the unions may just need to be replaced.


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Pool Tool

Well-known member
May 15, 2014
757
Western Chicago Area, IL
#8
My unions get stuck or bound up when over tightened. In my experience, the o-rings seat best when lubed then only hand tightened. Overtightening causes deformations when the o-rings pinch then stretch while the fitting is turned. Might be your issue, might not be, but I hope it helps.
 

pooldv

Mod Squad
TFP Expert
Platinum Supporter
LifeTime Supporter
Aug 10, 2012
24,993
DFW, TX
#10
My unions get stuck or bound up when over tightened. In my experience, the o-rings seat best when lubed then only hand tightened. Overtightening causes deformations when the o-rings pinch then stretch while the fitting is turned. Might be your issue, might not be, but I hope it helps.
:goodpost: