Originally Posted by shnaig
The connections were very tight. Interesting solution with the grounding clamps. The fact that you've seen this setup implies that the pipe does need to be secured regardless whether it's tight or not. Did you see this trick in a setup where one side of the coupling was a dead end?
TBH, I've only used a dresser a couple of times and they were on buried lines. I don't trust them nor does my inspectors.
It's best that you get the pipe out of the fitting. Put some heat on the fitting and use cheaters on your wrenches. It'll come off