How to Get Rid of the Sewer Gas Smell in a Bathroom Sink
- 1). Plug the drain of your bathroom sink, either with the faucet latch or with a stopper, then fill up the sink with water until it reaches the level of the overflow space. The overflow space is the small hole found on the front surface of the sink.
- 2). Instill 1 cup of household bleach into the standing water and then gradually add more water until it slowly drips into the overflow hole. Monitor the flow of water carefully so it does not overflow onto your floor. The chlorine bleach will sanitize and eliminate the sewer gas odor coming from the sink's overflow and surrounding structures. In addition to its disinfecting properties, bleach also helps dissolves odor-causing clogs.
- 3). Unplug the drain in a way that makes the water go down slowly so that the bleach can also work to disinfect the pipes and sink trap.
- 4). Clean out your drain with a clothes hanger to remove hair clogs, soap scum and other odor-causing residue embedded with the sewer gas smell. Once these solids have been removed from the drain and stopper rod, the smell will weaken.
- 5). Pour 1/2 cup of baking soda and 1/2 cup of white vinegar into the drain of your bathroom sink to neutralize the sewer gas smell and freshen the plumbing. Let the mixture sit for a few minutes before turning on hot water for one full minute to rinse. The vinegar smell will thin out, leaving your bathroom sink smelling fresh.
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