If you take apart an existing PEX connection, is it going to perform correctly if you re-crimp the same end of the tube – without cutting it – to a new fitting?
Often with PEX you can flex it a bit and get a little more length, and probably if that is the case you should cut a fresh end. But if you really have NO additional length to work with… would this work?
Assume that the tube end isn't damaged while removing it from the original fitting (which can be difficult). A really warped, cut, or otherwise mangled pipe end may pose a greater risk and isn't what I'm really thinking of. That said, even a carefully removed tube will have some distortion from the barbs it was pressed into.
Thanks
Best Answer
I think that you'd probably have to ask your Pex manufacturer to get an official answer as to whether or not this is recommended. But I can say based on personal experience that I've occasionally done what you propose without issue. And if you try it and it turns out not to work because the connection leaks, it will only have cost you a ~$0.50 crimp ring, plus however long it took you to cut off the original ring.