I am trying (hoping?) to move a one-pipe steam radiator over about a foot and a half or so. The plan was to remove the 'spud' from the radiator, thread ~24" length of pipe into the radiator, and use a basic straight coupling to connect the extension pipe to the spud and hence into the valve. Simple right? until one of the little nubbins the spud wrench grabs onto snapped off. Now what? If I were a welder I suppose I could build up a new nubbin, but I lack the equipment or knowledge. Any thoughts/advice welcome!