This plumbing drawback happens when wastewater from a garments washer flows into the tub as a substitute of draining correctly. This sometimes manifests as grey or soiled water rising within the tub throughout the washer’s drain cycle. An instance is a home-owner beginning a load of laundry solely to search out bathwater accumulating concurrently.
Understanding this concern is essential for stopping water injury and sustaining a sanitary house setting. Traditionally, shared drain strains between plumbing fixtures have been extra frequent, rising the chance of this drawback. Whereas fashionable plumbing codes typically mandate separate vent stacks and drain strains, the difficulty can nonetheless come up as a consequence of blockages, improper set up, or failing plumbing parts. Addressing this drawback promptly can avert expensive repairs and well being hazards related to standing wastewater.