We have a bathtub that has a drum trap - which appears to be lead, as do the connecting pipes. (The stack is cast iron.) The trap is leaking.
I'm thinking to cut the lead pipe on the stack side of the trap, use a rubber coupling to join that end to PVC from there to the tub. Is there reason NOT to do this? The alternative would be to unsolder the lead pipe from the stack Y, and connect the PVC there. This looks like it would take big heat, and might never get clean enough for the new joint to seal well.
TIA, George