However every drain must have a properly vented p trap.
Dry trap on second floor causing smell downstairs.
How to diagnose basement or crawl space sewer odors due to a floor drain diagnosing repairing cast iron drain connection leak problems diagnosing sewer gas odors traced to plumbing drain deterioration questions.
Especially during winter a p trap can dry up and allow sewer gas to enter the home.
Sewer odor in bathrooms has several different causes.
You have a water trap under a floor drain laundry tub or wash basin that has dried out from lack of use.
Finding the source of the basement smell.
Such as on a floor drain shower or toilet.
An empty or dried out p trap is the most common cause of sewer gas smells.
Well let s dive in to the world of dry traps and floor drains.
Floor drain sewage odor problem troubleshooting.
If you notice a foul sewer smell in your house or basement here are the five possible causes in order of probability.
Tracking down the sewer smell sewer gas odors can be caused by different factors and getting rid of them requires a bit of logical detective work.
I live in a 2 story house.
Maybe the trap is just drying out from not being used.
2nd story has 2 bathrooms downstairs has the kitchen and 1 bathroom.
No smell around the toilet sink.
Sure you could find it in other places but you ll typically find them in these couple rooms.
The most common reasons are a backed up sewer cracked or rotted pipes that leak clogged drains pipe connections are too loose the vent pipe is backed up or too short there is an old wax ring or a dry trap.
Upon inspection the homeowner might find the source of the smell is coming from a lesser used sink shower floor drain toilet or laundry.
The house is connected to the city sewer.
A sewer gas smell is coming from a p trap that has lost its water for some reason.
A sewer odor that emits from the bathroom sink drain can cause you to panic.
Sewer gas sulphur odor leak discovery cause repairs where a basement or crawl space floor drain or drain trap is the problem.
It s a drain in your floor usually found in store rooms washrooms loading docks and hallways.
Check for standing water on the floor or cabinet base beneath the u shaped pipe the p trap under the sink.
While it may smell dangerous the sewer smell usually consists of problem that you can fix yourself.
The p trap and the floor drain.
A floor drain is pretty self explanatory.
Dry air might just be the cause of that unpleasant rotten egg smell in your home.
Determining the cause of the sewer smell can help you prevent it from returning in the future.
In some areas it can take three to five months without use for water within the p trap to dry out and allow the sewer gasses to flow inside.
Water in any trap under unused drains will eventually evaporate.
Identifying the cause of the odor helps you determine its source.
The strong smell can quickly fill your bathroom with an unpleasant odor.
