A sulfur-like odor sometimes comes from your bathroom sink.
There may be a couple reasons your kitchen or bathroom sink smells like sewage. It might have a dry P-trap, just like a shower drain. But one other common source of odors is buildup in the overflow.
Buildup in the Overflow
If your bathroom sink smells like sewer check if it has an overflow mechanism.
Many sinks have a hole near the top that leads to an outlet for an overflow of water so that excess water won’t spill onto your bathroom floor. Like anything near water, your sink can get grime and mildew buildup fast, particularly in the overflow area.
How to solve the issue: Luckily, cleaning the overflow is a simple task. All you need is water, bleach and a small bottle brush:
- Scrub the interior of the overflow area with a small bottle brush to remove debris.
- Then, prepare a mixture of one part water, one part chlorine bleach.
- Use the bottle brush to work the solution into the overflow area, removing any remaining bacteria or odor.
Final Thoughts
If the odors do not disappear after thorough cleaning, call in a professional plumbing service to check your sink.
