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When a pinch crimp has to be removed and re-done, what is the proper tool to remove the PEX pipe from a barb after removing the clamp and cutting of the pipe?

I thought of using the PEX pipe cutter's blade but am afraid it would mar the ribs on the barb and cause a leak when it's subsequently re-used.

In my particular case I am using a 3/4 elbow like this with a PEX pipe which is white on the o/s and black on the i/s if it matters.

enter image description here

So if I had to undo and re-do this kind of connection, I would open one of the pinch rings and cut off the pipe, but don't know how to remove what's left under the former crimp:

enter image description here

  • This may sound obvious, but in some cases you can just pull it off with your hand strength. At least in some cases that has worked for me. I have read (not sure if I've tried...) that you may be able to re-use the pipe end that way. Say for instance if you were just replacing a damaged fitting (e.g., burst from freezing). – DaveInCaz Mar 11 '18 at 12:43
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I would use a utility knife to score the pipe. Or a pair of wire cutter pliers. Leave a little extra pipe on the end so you can grab it with the pliers and peel the pipe off.

  • Is there a concern that cutting PEX too deep would mar the fitting and cause a leak? – ajeh May 25 '17 at 14:11
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    If your t is a brass t, then I wouldn't imagine you would really make a cut in it that would affect performance of the port. I'd actually be surprised if you made a cut into the brass to begin with. – Jeff Cates Jun 1 '17 at 22:55
  • A poly (plastic) fitting is more likely to be scratched. But I think with care that could be avoided or minimized. – DaveInCaz Mar 11 '18 at 12:42
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I'm using this Home Depot cutter:

![enter image description here

(Husky 7 in. Diagonal Pliers)

gripping the crimp between the 2 blades turning the cutter and it pops open, then cut the pipe with a utility knife.

  • Is there a concern that cutting PEX too deep would mar the fitting and cause a leak? – ajeh May 25 '17 at 14:11
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    I never had any issue, but use common sense and cut only pipe but a little scar on the fitting is no problem. – aofkj May 28 '17 at 4:06
  • I would be surprised if you cut deep enough to make a scar that would not hold pressure. Use a new sharp blade and you don't need to cut hard. I have also rocked a straight edge blade instead of a pulling score. – Jeff Cates Mar 11 '18 at 22:10

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