Menu Close

Why is there a bad smell coming from my bathroom sink?

Why is there a bad smell coming from my bathroom sink?

A smelly sink is usually caused by bacteria build up from grease, fat and food which have been flushed down the drain. These will then get stuck in the pipes causing the familiar rotten egg smell.

How do I get rid of the smell in my bathroom sink drain?

Pour baking soda and vinegar down the drain: Run hot tap water for several seconds, and then turn the water off. Dump one cup of baking soda down the drain followed by two cups of hot vinegar. Let the concoction fizz. After one hour, flush the drain with hot tap water.

Why does my bathroom sink smell like throw up?

If that lingering odour smells a bit like vomit, your home could be dealing with a summer infestation of drain flies, also known as sewer flies. Drain flies are tiny, fuzzy, moth-like insects that breed in sinks when the conditions are right (or wrong, for us humans) and the weather heats up.

How do you get rid of sewer smell in sink?

Baking Soda and Vinegar While your water is heating, pour one cup of baking soda and one cup of vinegar down your drain, and let the mixture sit. After about ten minutes, flush the drain with boiling water. Finish up by flushing the drain with cold tap water, and wait to see if the odor is gone.

Why does my bathroom sink water smell like rotten eggs?

Bacteria growing in the drain Bacteria growing in the drain is the most common reason for this smell. Over time, organic matter, like food waste, will accumulate on the walls of the drain and act as a nutrient for bacteria to grow. The bacteria can produce a gas (sulfur) which smells like rotten eggs or sewage.

Why does it smell like sewer under my bathroom sink?

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. 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.

How do you tell if P trap is working?

Is your P-trap working properly? If you detect any foul odors near the P-trap that remind you of a smell similar to rotten eggs, then it means that there is hydrogen sulfide present. This, and other harmful gases, bacteria, and viruses, can get into the house if your plumbing trap has malfunctioned.

Why do I smell sewer gas coming from my bathroom sink?

A sewer gas smell in the bathroom can be caused by: evaporation of water in the P-trap piping. broken seal around the toilet in the wax ring or the caulk. A burst pipe.

Why does my P-trap stink?

One common reason your drain smells bad is a dried p trap. A dried p trap will result in a sewer odor emitting from a sink that maybe hasn’t been used in a while. A p trap is designed to use water to block the sewer gases from leaking up the drain. If a sink’s p trap dies out this can result in a drain that smells bad.

Why does my sink smell like sewer?

If your kitchen sink drain smells, especially if there is a sewer smell, you may have a dry P-trap. The P-trap is the curved portion of pipe under the sink. It is supposed to hold water, which creates a seal that prevents sewer gases from getting into your kitchen. There needs to be water in the P-trap at all times.

How do I get rid of the smell in my sink?

The most common and effective method for maintaining a clean sink and drain is tipping a tablespoon of baking soda down your drain once a week. But for a deeper odor-fighting process, try the hot water, baking soda, and vinegar solution: Boil a pot of hot water.

Why does bathroom sink smell like rotten eggs?

A slow-draining sink clogged with ordinary hair and soap scum can build up bacteria in the P-trap until your bathroom sink smells like rotten eggs. This smell can also happen in sinks that haven’t been used for a long time. Clear the clog by using a combination of baking soda, white vinegar and hot water.