If the odor emanating from your bathroom sink smells strongly of sewage then sewage may be the actual culprit.
My bathroom sink pipes smell.
This is the best way to clean sink drains.
Luckily keeping the drain clean and odor free is a fairly easy task and requires only a couple of inexpensive household ingredients.
Remember all your water waste eventually drains to the same place so the runoff from your bathroom sink will be sharing a pipe with sewage down the line.
Pour water down the tub or sink drain to refill the pipe.
Fixing this issue is simple.
If your tub shower or sink is not used frequently the water inside the pipe often evaporates and allows the gases to pass through into your bathroom causing the unpleasant smell.
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.
The possible reason is clogging of the pipe that leads to dry p trap.
According to research the bathroom drain is the primary reason why bathroom sink smells like sewer.
If you smell such as an odor there is a likelihood of bacteria builds up down the drain and this is also likely going to make your bathroom sink clogged.
Like many others your sink probably has a hole at the top that allows fast drainage when the sink is full of water.
Even though you can t access this pipe as easily as.
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 bacteria.
Sometimes it happens that the sewer smell in the bathroom comes from the sink.
Pour it down the shower and sink drains to eliminate any gunk that may have built up in the pipes and caused the stink.