A strong sewer smell coming from your basement is most often caused from a dried out floor drain, a bad ejector pit seal, improperly vented appliances or fixtures, or even a damaged sewer line.

Why does my basement drain smell like sewage?

The most common cause of sewer gas odors in a basement will be due to your home being equipped with a large basement floor drain. This drain runs deep into your sewer line, and can give off foul sewer gas odors when: There is damage present in the drain line. The drain line is clogged, or needs cleaning.

How do I stop my drains from smelling like sewer?





Simply pour several tablespoons of baking soda down a blocked or smelly drain, then follow it up with several tablespoons of plain white vinegar. Then quickly block the drain tightly and wait a few seconds.

How do I get rid of a smelly basement drain?

Simply pour a few gallons of water to re-establish the proper water barrier. You can add a small amount of vinegar to help remove any persistent odors. If you don’t use basement toilets often, the water from the P-trap can evaporate just like with floor drains. Give the toilet a flush or two to remedy the problem.

Why does my basement drain smell like rotten eggs?

The distinct “rotten egg smell” comes from hydrogen sulfide. Not only is a foul sewer smell in the basement hard to tolerate, but it can also be dangerous too. The danger resulting from the foul odor of sewer gas comes from the breaking down of organic materials that are commonly found in sewers.

How do you tell if your sewer vent pipe is clogged?

How to Tell if Your Plumbing Vent is Clogged

  1. A Primer on Plumbing Vents. …
  2. Water Takes A Long Time to Drain. …
  3. Dry and Empty Toilet Tanks. …
  4. Foul Smells. …
  5. Gurgling or “Glugging” Sounds as Water Goes Down the Drain. …
  6. Get Those Clogs Out of Your Plumbing Vent ASAP.





Why does my basement smell like poop?

If it smells like garbage, rotten eggs or feces, you may have a bigger problem on your hands. This odor is generally the result of a build-up of waste materials found in a septic system or public sewer system. It may be caused by a crack or clog in the plumbing system itself, or a crack or clog n the venting pipes.

Can you pour bleach down your basement drain?

Bleach is a powerful, toxic substance that should be used carefully and properly, and pouring it down a drain is not a proper use. Bleach can react with other substances in your pipes, potentially release fumes, and further plug up the system.

How do you clean a basement drain pipe?

Clear them of visible debris and use an old toothbrush to scrub away substances and any dirt you see off the edges. To further clean your drain, pour a bucket of boiling water down and wait 15 minutes. Then add a 16oz box of baking soda down the drain and make it fizzle by adding 3 cups of vinegar.

How do you get rid of sulfur smell in drain?



For each drain, pour about half a cup of baking soda. Then, tip in a cup of vinegar into the drain, followed by hot water. Baking soda and vinegar may help not only reduce the smells but also kill some of the bacteria too. Baking soda, according to scientists, does have antimicrobial properties.

How do you unblock a sewer vent pipe?

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Can a clogged vent pipe cause sewer smell?

Strong sewage smells are a telltale sign that your toilet vent pipe may be clogged. One of the main jobs of vent pipes is to get rid of those nasty odors and gasses, so if you smell something off, it’s time to check it out. If there is a clog in the plumbing vent, those sewer gasses can’t escape properly.

Why does my house smell like sewer at night?



Some of the most common include an improperly installed or cut vent pipe, a broken or loose seal or a damaged toilet. If the walls near your toilet emit a persistent sewage smell, the cause could be an improperly installed or cut vent pipe. The vent pipe helps regulate the air pressure in your home’s plumbing system.

Why do I constantly smell sewer?

If you have, you may have experienced phantosmia – the medical name for a smell hallucination. Phantosmia odours are often foul; some people smell faeces or sewage, others describe smelling smoke or chemicals. These episodes can be sparked by a loud noise or change in the flow of air entering your nostrils.

Why does my house randomly smell like sewer?

If you are detecting foul sewer odors inside the house, this means that there is a weak link somewhere in your plumbing system. Possible sources include bathroom sink drains, toilets, kitchen drains, basement drains, old cast iron piping, or even the vent stack that goes out through your roof.

Why does my house smell like sewage septic tank?

A septic odor in your home usually means there’s a plumbing problem, but not all issues require calling a plumber. The floor drain trap in your basement could be dried out, allowing septic tank gases to vent back into your house. Periodically filling the drain traps with water will correct the problem.