I have a '76 home in washington state. I've been in this house 3 years and keep finding things to fix. Recently I've started updating the master bath. After taking out the toilette to install a tile floor I discovered that the metal footing surrounding the black pipe is rusted through on the right mounting screw. I can see through to the ceiling below - is this an easy fix? I'm eager to learn but haven't done a lot of plumbing work.