The most likely cause of a sulfur smell or other bad smell coming from a drain is stuck food, and it's the easiest to fix. As food that gets clogged in a drain or disposal decomposes, it emits gasses that cause unpleasant odors.
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.
What you can do: Try this: put a couple teaspoons of baking soda in the drain and then pour in some vinegar. Then chase it with a pot of boiling water. The foaming of the baking soda/vinegar eats away at the junk in the drain and the boiling water helps wash it all away and sanitizes the drain.
In technical terms, sewer gases are the result of the “breakdown of human waste and are made up of a mixture of gases including hydrogen sulfide and ammonia.”1 The rotten egg smell coming from your toilet is telling you that a part of your plumbing line is not functioning properly, and you should listen.
If your house smells like rotten eggs, this is probably septic gas, unless you have a carton of eggs hiding in your living room. Septic gas has a strong, naturally occurring odor that smells like rotten eggs. The smell is hydrogen sulfide, which comes from sewage and indicates a potential issue with your plumbing.
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. tree's roots have grown into or have caused damage to your sewer pipes.
Irritated eyes, nose, throat, and respiratory system, including tearing of eyes, cough, or shortness of breath. Effects may be delayed. Severe eye and respiratory irritation such as coughing and difficulty breathing. These symptoms may be accompanied by headache, dizziness, nausea, vomiting, and more.
Clogged Drain
If your drains smell like sulfur, they may be clogged or partially clogged.
Chlorination can kill sulfur bacteria. If all bacteria are not destroyed by chlorination, the problem may return within a few weeks. Increase the water heater temperature to 160 degrees Fahrenheit (71 degrees Celsius) for several hours. This will destroy the sulfur bacteria.
Identifying a Dry P-Trap
Here are the signs to look out for: Persistent sewer gas odours near sinks or floor drains. Drains that gurgle or make unusual sounds. Infrequently used fixtures, such as guest bathrooms or utility sinks, are familiar places for dry P-traps.
If your drain smells like rotten eggs, you must disinfect the pipes to get rid of the odor. You can eliminate the bacteria by pouring a ½ cup of bleach down your drains.
The most common culprits include mould, mildew, and bacteria that thrive in moist environments like bathrooms. These organisms release stinky compounds into the air that can make it seem like there's an actual sewer coming up from your toilet or sink drain!
Out of all the odor eliminators we tested, the Moso Natural Air Purifying Bag was our favorite. This product neutralizes bad scents up to 90 square feet away.
What can I put in my toilet tank to make it smell better? White vinegar and baking soda in equal parts is a cost-efficient and effective means of getting rid odors in a toilet. Add them to the tank, mix them in and then use the toilet brush to gently scrub the tank.
In addition, urine and water can get under your toilet and cause further damage. Apply caulking to form a protective coating around your toilet base and combat bad odors.
Where is the odor coming from? Check your home's drains, toilets, and plumbing fixtures for any signs of leaks or damage. Look for cracks, loose connections, or broken seals allowing sewer gas to escape. Additionally, inspect your sewer vents on the roof or outside your home for any obstruction or damage.
Poor ventilation: Bathrooms with inadequate ventilation can trap moisture and humidity, creating a breeding ground for mold and mildew. These fungi produce a musty smell that lingers even after cleaning.
Answer: Only under extremely unusual circumstances. Although hydrogen sulfide is a toxic gas, it will not harm people at the concentrations that exist in a house with sewer gas odor problems. Studies have shown that hydrogen sulfide has a depressant effect on the central nervous system in concentrations above 150 ppm.
Rotten Eggs
The two most common sources of a rotten egg smell are a natural gas leak, and escaping sewer gas. In its natural state, natural gas is actually odorless. That's why utility companies inject a substance called mercaptan, which emits an odor that smells like sulfur or rotten eggs.
First, sewage pumps are going to clearly marked as such, so have a look on the lid of the pump to see if its marked as a sewage pump. You will also notice that a sewage pump has a sealed lid, for obvious odour containing reasons. You will also notice that a sewage pump will usually have two pipes coming out of the top.