Whole-building signs
When several drains act up together
Slow drainage at more than one fixture, gurgling sounds, sewer odors and wastewater coming up in a tub or shower point beyond a single drain. Unexplained soggy ground where the line runs outside can be another reason to investigate, although the source still needs confirming.
During a backup, stop running water into the affected fixtures and keep away from the wastewater. Tell us which drains are involved and whether the symptoms happen together. That pattern helps direct the inspection without you having to locate the failed section.
