So I was taking my PV apart to clean it and rebuild the coil, and the chimney is stuck to the atty head. It will literally not come undone.. I have even used 2 slipjoint pliers on each piece and tried to twist it off, and it refuses to budge. It was put together finger tight, but now it's like it's welded on. I even ran it all under hot hot water to try and loosen it up, but it still refuses to budge. Any suggestions would be great! Thanks!