Turn the water off.
How to fix a smelly bathroom sink drain.
The first thing you can do and the most simple is to remove any type of stopper from your sink or drain and clean it.
Fill a turkey baster with hot water and vigorously squirt the water into the overflow pipe to rinse that portion of the drain system as well.
There is a possibility that there is debris lodged in the stopper that is causing a gross smell.
One of them is to prepare a mixture of half a liter of warm water 200 ml white vinegar and 100g of sodium bicarbonate or baking soda and then pour it down the drain.
A smelly bathroom sink drain is a common problem as odor residue and bacteria accumulate regularly in the drain.
Let the bathroom door remain closed for one hour to allow the reaction to take place with no interference.
Pour water down the tub or sink drain to refill the pipe.
Measure a cup of vinegar and add to the baking soda inside the sink drain.
Get rid of a smelly sink drain with baking soda.
Flush the drain with hot water for 30 seconds.
The hot water will loosen soap scum and any other foul smelling debris in the drain.
Turn the tap to the hottest water setting possible and let it run for a few minutes.
This is the best way to clean sink drains.
It doesn t matter if you use hot or cold water.
If the u bend isn t the problem you can try out some popular home remedies to fix a bad smelling drain.
Pour hot tap water down the drain.
Overflow holes can also be the cause of the sewer smell.
Fixing this issue is simple.
Overflow holes are the small holes or slits on the top back section of your bathroom sink.
Run hot tap water down the drain for a minute.
That same foaming action can clean stinky drains and eliminate the smell.
If using the tap isn t an option heat a pot of water on the stove.
The second thing that can be done is to pour cup of baking soda into the drain and then pour cup of vinegar into the drain.
Smells emanating from the bathroom sink could be the result of bacteria growth on hair soap and other bathroom waste and if so cleaning the p trap and pouring baking soda in the drain are.