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hswerdfe 11-21-2012 09:03 PM

getting the crimp ring off a pex connection?
I am replacing a laundry room sink, and this is my first ever plumbing project, so try to forgive any ignorance I have in these issues.

I put all my new connections together using PEX and a crimp tool.
I did my Go no-Go test on all connections with no failures.
I did a water test and I don't have and leaks...YAY!

But when I visually inspect them one of my crimped connections looks a little bit off. specifically, the PEX piping is about 1/8 or 1/16 of an inch away from being pushed all the way on the T joint.

I am worried, this connection will not hold and I wanted to replace it. So I was wondering how can I remove the crimp ring and reuse the T joint? or do I have to sacrifice the T joint and half inch of PEX to the landfill? or should I just leave it?


gregzoll 11-21-2012 09:25 PM

Post a picture of what you have currently. Lineman pliers, dremel with a cutting blade. If you have the excess available, just cut and redo.

hswerdfe 11-21-2012 09:41 PM

picture of the joint that is a little off
Thanks, I do have excess and the T joints are cheap, so I might just do that.
But this is a picture. the one on the left is water coming in and being split in the other 2 ways.

It doesn't leak, but what do you think? will it?

REXAMUS 11-21-2012 09:58 PM

I use this.......

gregzoll 11-21-2012 10:32 PM

For $26 bucks for a cheap set, one time only, Lineman pliers will work. But having it for that just in case, I would go with it for the toolbox. Plus there is always those crimps for automobile tubing that they use the same crimper for, which it is nice to have one around.

Akpsdvan 11-21-2012 10:48 PM

Depends on the room around the area in question, if there is room to move then maybe some thing like the makita saw saw.. or the milwaukee oscillating tool, it all depends on what tools one might have around the house and the room around the fitting in question.

After the ring is off you might need to cut the pex back a little but one should be able to cut the ring with very little damage to the pex or the pex fitting, the fitting is the part that one would try and NOT damage.

Bondo 11-22-2012 05:34 AM


So I was wondering how can I remove the crimp ring and reuse the T joint?
Ayuh,.... I use my 4" grinder, 'n grind off the raised area of the crimp ring, then pull it apart with plyers...

'n I'm usin' the SSteel crimp rings, 'n not the copper 1s...

Beepster 11-22-2012 07:34 AM

Dremel with a cut off disk for me.

All tools that cost a few bucks. But if you are a beginning DIYer, they are tools that will get plenty of use in the future.


VIPlumber 11-23-2012 09:03 AM

For a beginner DIY'er I'd recommend a hacksaw with metal blade. Slower than a power tool but better control of the cut and less likely to damage the pex and barbs on the fitting under the crimp ring.

joecaption 11-23-2012 09:14 AM

I use a pair of these, there also geat to use when pullling finish nails out of the back side of moulding.

Akpsdvan 11-25-2012 12:31 PM

There was a need for the milwaukee oscillating tool to remove the expand ring of a pex and with some care it worked great. It was even able to cut the pex enough to remove it from the fitting.

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