Nothing is preventing the smell from the sewer from getting into your home.
My bathroom sink smells like rotten eggs.
What you can do.
Bacterial activity in a dirty sink drain produces the stinky hydrogen sulfide gas.
The key is to make sure that you find the source of the smell.
Other times it may be coming from the actual water source.
Sometimes it is coming directly from the sink drain.
If you only experience the smell when using your hot tap it may be a chemical reaction occurring inside your hot water heater and not a problem with your water supply.
The rotten egg smell comes from a gas by the name hydrogen sulfide.
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.
If an odor is coming from your drain or bathroom water it might be because of sulfur.
Cleaning and disinfecting the drain can stop the sulfur smell.
Why does my bathroom smell like sulfur.
When your bathroom sink smells like rotten eggs the cause is likely contaminated water and drains blocked vents or a dried up p trap.
This is actually a pretty common problem that people face.
What to do when your sink stinks.
Are you plagued with a rotten egg smell coming from your bathroom sink if so then you are not alone.
Have you walked into your bathroom and noticed a foul smell coming from the sink or drains.
Grease stuck in the drain.
Does it smell like rotten eggs but you don t remember having any for breakfast or lunch.
Have a professional licensed plumber install the proper trap.
In some cases the rotten egg smell comes from water that has been contaminated.
You ll know if the kitchen sink smells bad when water runs by doing an easy test.
The gas is produced when bacteria grow in the drain sewage or the ground.
If your water smells like rotten eggs the odor is usually caused by the levels of sulfur bacteria and hydrogen sulfide that can be found in a building s water supply.
You may also need to unblock your drainage vents.
The following is an easy inexpensive and very effective solution.
The smell comes from hydrogen sulfide gas which is produced by bacteria in the ground in sewage and in contaminated water and pipes it s often known simply as sewer gas.
Sulfur smells in your sink could be coming from the water or the drain and either way they aren t pleasant.