This is what my son and I did last night, and it worked, but not as easily.
We had a pipe freeze in the crawl space, and when it thawed yesterday, it started leaking. Since I was at work, Betsy and Nathan looked it over, and apparently it was leaking in the same spot that it had leaked the last time the pipe froze.
At first I had us using the cutting tool to cut the old Shark Bite off, but it wouldn’t tighten down enough to cut effectively. Then I remembered that it was supposed to be able to pop off, so we tried popping it off. Took the two of us together in that tight space, one to push the slide mechanism, the other to turn and pull it until it came off.
So we wasted most of an hour in preparation, and spent about 2 minutes popping the new one on. Still cheaper than hiring a plumber.
At The Rainbow 
It is interesting how I usually think of a hard way to do something first and eventually come to a simpler solution. Unfortunately sometimes after it is too late.
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