A rancid odor coming from your sink drain may just be coming from debris in the p trap but if it smells like a sewer it probably means venting problems in your drain system.
Why does my bathroom sink smell like sewage.
Bathroom sink drain has all the organic matter that flows down with the water.
Once you ve identified where the odor is.
When the vents are blocked flushing a toilet can create sufficient vacuum to suck water out of the trap and allow sewer gases into your home.
If you notice a foul odor coming from the overflow pipe in your sink the pipe is probably harboring a layer of gunk and a colony of.
The first possible cause of a sewage smell in your bathroom is by far the easiest to fix and more likely to occur in bathrooms where fixtures haven t been used recently such as the sink in a guest bathroom or the tub in a bathroom with a separate shower.
There is soap hair and used toothpaste spits.
It is always a sewage like odor or rotten egg smell.
The sewer odor in bathroom could be responsible for various health problems including headaches as the waste breaking down in the sewer line emits.
Sewer smells in your bathroom can result from a few different issues so you ll need to spend a bit of time in the room to sniff out the source.
According to research the bathroom drain is the primary reason why bathroom sink smells like sewer.