This plumbing drawback happens when wastewater from a garments washer flows into the bath as a substitute of draining correctly. This usually manifests as grey or soiled water rising within the tub in the course of 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 subject is essential for stopping water injury and sustaining a sanitary house surroundings. Traditionally, shared drain traces between plumbing fixtures have been extra widespread, rising the probability of this drawback. Whereas fashionable plumbing codes usually mandate separate vent stacks and drain traces, the difficulty can nonetheless come up as a result of blockages, improper set up, or failing plumbing parts. Addressing this drawback promptly can avert pricey repairs and well being hazards related to standing wastewater.