My Neighbor Has a Drain Pipe Leak in the Wall...Part 1

What happens here

This project details the process of diagnosing and replacing a corroded and improperly installed copper drain pipe for a washing machine. The original setup involved a mismatched no-hub coupling and a leaded brass flange, leading to significant leakage and damage. The instructions cover cleaning the affected area, cutting out the old copper pipe, disassembling the faulty no-hub coupling, and meticulously removing the old leaded brass flange from the cast iron stack.