Washing Machine Drain Clog — Verified Source

Note: Do not do this if your plumbing is 50 years old and made of cast iron. The pressure can burst old pipes.

You will eventually get this clog again. Sludge is inevitable. But you can turn a "once a year emergency" into a "once every 5 years maintenance." washing machine drain clog

You are dealing with soft sludge, not tree roots. A snake will poke a hole through the sludge, but it won't clear the walls. The water will drain for a week, then clog again. Note: Do not do this if your plumbing