Well, heating it up didn't help. Just too much area to get hot enough at the same time to take it apart. I'll just have to wait until payday to order couplers
I think I can get the 2 needed for about $25 shipped
I'll be $100 into this before I'm done but at full local prices it would be worth $200 or so.
All because the Chinese think they can weld a screw to thin sheet metal and not have it leak.