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steam pipe joint rusted solid
Trying to replace the pipe that goes into the radiator inlet valve. The pipe is too short to match up with the height of the radiator. Haven't been able to get it to budge. Tried WD 40 and also used an extender on the end of my big pipe wrench. No luck. Is there something better than WD 40? Any other suggestions would also be appreciated. I'm afraid that if I just keep going as is, I am going to collapse the old pipe and create a big mess.