What is the trick when loosening Steel Tubing Lines with Brass Fitting and metallurgy has occurred to the point where the fitting is rusted and frozen on to the fitting, and when You attempt to loosen the fitting the Steel Tubing Line Twists and Crimps. I hate when that happens
I have been told Not to use Teflon Tape, pieces may break off and get into the lines. I was told to use a product called Liquid Teflon. I realize that this will help seal the fitting. But What Precaution can be taken to prevent the Fitting from corroding the steel line, so the fitting can be backed off without Twisting the Tubing?
I trust Those Members with Experience and Knowledge will be able to provide a Solution to this annoying Problem.