What to know
The pattern of affected fixtures is useful information.
One slow sink may point to a nearby restriction, while multiple affected fixtures can suggest a blockage farther into the drainage system. Gurgling can occur as air and wastewater move around a restriction.
Note which fixture changed first, whether using one fixture affects another, and whether wastewater is backing up. That information helps a drain specialist decide where to begin the diagnosis.
Key takeaways
- Why the number of affected fixtures matters
- Signs that the restriction may be farther into the drainage system
- When to stop using affected fixtures and call for service
What to pay attention to
- More than one fixture slowing
- Gurgling when another fixture drains
- Wastewater entering a tub or floor drain
- A toilet that will not clear