The only reason it would not melt is if there is still water (even a small
amount) in the pipe. If this is not the case, then the solder is melted and you
just need a tap with a hammer or twist (while hot) to open the joint. You may
not have properly deburred the pipe when you made the joint and the burr is
jammed in?

If all else fails, cut the pipe again and add a short piece with a coupling...

John

"ississauga" wrote in message
om...
I am using a propane torch to melt a recently made solder joint
holding together half inch copper plumbing pipes, but the solder won't
melt no matter how long I heat it for. I leaked out the water and
heated once till copper pipe turned red. Is there another way to melt
the solder ?