Hi, I thorougly cleaned the copper pipe and as far as I could tell, the pipe was dry (or maybe not?). I applied heat where the flux was put to the joint, removed the heat when I touched the solder to the joint. It just broke off in chunks. Tried heating it more (the drywall was start to brown) and the same thing - as soon as I touched the joint with solder, it just chunked off.
Would water in the pipe cause this? The hot water tank is shut off as is the water supply all before I started soldering (also opened up the lines before I shut off the water supply which I thought would do the trick).
Thanks in advance.
Would water in the pipe cause this? The hot water tank is shut off as is the water supply all before I started soldering (also opened up the lines before I shut off the water supply which I thought would do the trick).
Thanks in advance.