How To Clear Washer — Drain Pipe [hot]

A wet/dry shop vacuum is the single best tool for clearing a washer drain. Set the vacuum to “wet” mode and remove any dry filter. Create a seal around the top of the standpipe using a rag or duct tape, then press the vacuum hose firmly against the opening. Turn on the vacuum. It will often suck the clog back out of the pipe. You may hear the clog slurp up – a satisfying sound. Check the vacuum’s collection tank; you will likely find a nasty plug of lint, hair, and soap residue. Repeat from the other end (the end of the detached drain hose) for good measure.

If your washer drains into a utility sink or an exposed pipe with a U-shaped bend (P-trap), the clog is likely sitting there. how to clear washer drain pipe

If you have tried the vacuum and a snake and water still will not drain, or if you notice water backing up into other fixtures (like your tub or sink), the clog may be in your main house drain line. This requires a professional plumber. Additionally, if your pipes are old metal or you suspect collapsed or root-invaded pipes, do not force a snake – call an expert. A wet/dry shop vacuum is the single best