The drain plumbing on the bath sink is rusted out and needs to go. It is
silver colered but don't know what kind of metal it is (standard thin 1 1/4"
drain plumbing). It appears to screw inside the female cast iron stack.
The connection to the stack looks all built up with scale and rust and am
afraid if I take a monkey wrench to the rusted pipe it will crumble or twist
into a prezel and not turn. It there a proper tool or way to get this out?
Thanks,
Dave