If you’ve tried all this and the odor persists, it might be a bigger issue. For example, a cracked pipe or a vent problem could be letting sewer gases leak. That’s rare, but it happens.
Why Does My Bathroom Sink Smell When I Run Water: Easy Fixes! - Vacuum
Don’t panic! Call a plumber for a look. It’s like visiting a doctor for a weird cough. A pro can solve it in minutes, and you’ll feel like a detective who cracked the case.
