Originally Posted by curtisfox
One could carefully cut the petcock out and solder it on the bottom then put a patch over the hole..................Curt
A full tank will never blow just fill with water if using a torch. Just use a hole saw cut it out drill a small hole on the bottom solder it there. Then cut a new patch cover the oridgional hole.
If you cut out the petcock and try to solder it back somewhere else without any other reinforcement or prep, it WILL fail! Solder is not strong enough to cope with the stresses a petcock mount is subjected to.