This gas usually smells distinctly like rotten eggs and can be pretty overpowering.
Why does my bathroom sink smell like rotten eggs.
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When your bathroom sink smells like rotten eggs the cause is likely contaminated water and drains blocked vents or a dried up p trap.
You may also need to unblock your drainage vents.
Generally the smell of rotten eggs comes from a sulfurous gas that is produced from a build up of gunk hair and other particles that accumulate within the drain.
It s often known simply as sewer gas.
In some cases the rotten egg smell comes from water that has been contaminated.
And then as it begins to decompose the smell can make its way back into your home.
Cleaning and disinfecting the drain can stop the sulfur smell.
Grease stuck in the drain one of the most common reasons for a kitchen sink to have a rotten egg or moldy smell is from grease or fat getting stuck in your drains.
Lots of things can get stuck in the trap of the kitchen or bathroom sinks and when those things start to decompose it can make the drain breathe out a horrible rotten egg smell.
When you pour grease down your drain it can congeal to the sides.
The smell comes from hydrogen sulfide gas which is produced by bacteria in the ground in sewage and in contaminated water and pipes.
The rotten egg smell comes from a gas by the name hydrogen sulfide.
The gas is produced when bacteria grow in the drain sewage or the ground.
White vinegar and baking soda.
It means that there are bacteria growing inside of the drain as well which can be unhealthy for you.
Bacterial activity in a dirty sink drain produces the stinky hydrogen sulfide gas.