Originally Posted by SteveDel
Hopefully I'll be able to replacing my work under the sink in the near future with a more permanent solution.
Gawd I hate to tell you this, but that's the kick in the A$$ with compression fittings. When you tighten a compression fitting onto a copper pipe, you actually crimp a brass sleeve (called a "ferrule") onto that pipe with a compression nut behind that brass sleeve. So, I kinda doubt you're gonna be able to get that brass ferrule off without cutting it off. Like, I mean, cutting the pipe behind the ferrule to remove that ferrule so you can solder a coupling onto that pipe and extend it a bit further. Do you even have room to do that?
Does anyone in here know if it's possible to cut a brass compression fitting ferrule along it's length and then pry it off the copper pipe? What tool would a person use to cut the ferrule without mucking up the pipe?
I have heard people say that you can remove a brass ferrule from a copper pipe, but how it's done, I have no clue. The force with which you've crimped that brass ferrule onto that short piece of pipe may make removing it a pipe dream.
If push comes to shove to fix that leak, undo that compression fitting, wrap some soft teflon tape around that ferrule as best you can to make a water tight seal between the ferrule and the fitting and put the compression fitting back on, but don't tighten the bygeezus out of it. Just a bit more than snug should be OK.
Watch this Plumbing forum for a post on basic instructions on how to solder. I will also explain why each step is done. If you know what you're doing and why, you'll have much more confidence doing it.
Does anyone else have any idea of what to do here if Steve can't stop that leak without busting something?