When I removed my old water heater I was not able to disassemble the sweated connections on the inlet pipe. I heated the connectors with my Bernzomatic and used water pump pliers to twist/wiggle the connectors until they separated on two of the connections but not all of them. I could melt the solder but no amount of wiggling let me pull the rest of the connections apart. Eventually the connectors and pipe became red hot. and at that point I gave up and just sawed them off. There was no water in the pipe either. These particular connectors were installed 12 years ago. I have had no problems removing connectors from new pipe.
I now have a tiny leak coming from one of the connectors that I did not remove the pipe from. It leaks one drop every minute or so. Please see the below image.
I now have a tiny leak coming from one of the connectors that I did not remove the pipe from. It leaks one drop every minute or so. Please see the below image.