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.,
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.Jul 15, 2016
If you are noticing the smell of rotten eggs, it is possible that your water or sink drain is contaminated. It could also be that the drain is clogged or partially drained. When sinks are clogged, they drain slowly, which can cause bacteria to build up in the p-trap and create the hydrogen sulfide gas.Jul 28, 2021
Bleach and cleaning fluids create toxic gasses when mixed together. If you pour bleach and other cleaning agents down your sink drains, and they mix in your pipes, you can contaminate the air in your home with the resulting gas created. The following items should never be poured down the sink with bleach: Vinegar.
While you can't stop the creation of septic and sewer gases, you can eliminate the odor that is caused as they exit the roof vent pipe or septic tank vent by installing a Wolverine Brand® carbon filter on top of your sewer vent.
To eliminate odors coming from a dry p-trap, pour half a gallon of water into the trap to restore the barrier. It will prevent the odors from seeping through the drain. Another helpful method is to add a cup of white vinegar bleach to get rid of larvae and slow down the evaporation.Dec 9, 2020
There are two main reasons why your kitchen drain may smell: A build-up of food and debris in the drainpipe. Anything you put down your sink other than water can stick to the sides of the pipes or sit in the U-bend. And over time, bacteria will cause it to decay and smell.Feb 21, 2020
Soap scum, dead skin, hair and other stuff accumulates and gets trapped. That layer of rotting gunk in your overflow pipe will eventually emanate a foul odor. Another nasty problem — noxious sewer gasses can make their way into your home if the plumbing is not maintained properly.Jun 6, 2016
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.Jun 28, 2021
Bacteria growing in the drainnnBacteria 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.Jul 22, 2019