I have a four port gas manifold I bought a few year ago, and one end is sealed with a brass plug and some sort of plumbers putty (or possibly caulking). I would like to remove the plug and attach an additional three port manifold I recently purchased, but I cannot remove the damn plug! I have tried everything to remove the plug including carving out the putty with a knife, soakkng in 98% ethanol (stolden from the lab), WD-40, Goo-B-gone, boiling for half an hour to loosen the metal and using three foot clamps for extra torque. I cannot eve budge the thing! If anyone has any sudgesstions, or possibly tools that I could borrow it would be greatly appreciated!
