Sewer Gas Bathroom Reddit: Real Experiences & Solutions

A sewer gas odor in the bathroom can be alarming—whether it’s a faint rotten egg smell or a persistent stench, many Reddit users share firsthand experiences and practical fixes to tackle this common issue.

Common Causes of Sewer Gas in Bathrooms

Sewer gas enters homes through dry P-traps, cracked pipes, or malfunctioning vents. Reddit threads frequently highlight how infrequent flushing, blocked drains, or aging plumbing create perfect conditions for gas buildup. Understanding these root causes is key to preventing recurring odors in bathrooms.

Reddit Community Insights: Real User Stories

On Reddit, users share personal accounts of discovering sewer gas, from sudden odorous bursts to persistent smells lingering after showers. Top posts often detail how DIY fixes—like snaking drains or replacing vent caps—combined with professional plumbing checks, led to lasting relief. Community forums also stress the importance of regular maintenance to avoid costly repairs.

Proven Solutions and Prevention Tips

Experts and Reddit members recommend proactive steps: flushing drains with vinegar or baking soda, sealing pipes, and inspecting vent systems seasonally. Many users report success using drain stoppers and deodorizing sprays, while others advocate for professional vent inspections to ensure proper airflow and eliminate gas risks in bathrooms.

If sewer gas in your bathroom is more than a temporary nuisance, act fast. Leverage insights from the Reddit sewer gas bathroom community to identify the source, apply effective fixes, and protect your home. Share your experience and solutions on Reddit to help others—your voice could make a difference.

Sewer gas in bathroom? I just moved in yesterday and after the first two toilet flushes, I now can't enter the bathroom without dry heaving. I don't have a sense of smell, but I think it's sewer gas? I called a couple plumbers but only got voice mails (of course it's Sunday). The house is 700 square feet with one bathroom and a full basement.

Sewer smell every now and then coming from bathroom (self.homeowners) submitted 10 months ago by XSC I recently had an issue with a small amount of sewer flowback coming from the basement sink in addition to smell. There was a clog in the sewer line. Plumber came by and fixed it, it has been working fine.

I am getting this terrible sewer gas smell coming from my bathtub drain. It is practically blowing out of my drain and fills up the house with terrible odor. The bad news is that any number of things can cause a sewage smell in your bathroom, and it can be difficult to pinpoint the source of the odor.

Besides the obvious unpleasant smell, the methane in sewer gas can actually be flammable in large quantities, and breathing it in can be hazardous to your health. Fortunately, once you identify the source of the problem, the sewage smell is usually. It smells like sewer gas whenever we use the upstairs bathroom.

I'm away on a trip atm, but I'm going to make sure to run some water in the shower when I get back. Sewer Gas Smell from Venting Issue? We recently (~4-6 weeks ago) had some bathroom work done. This included reworking of some drain lines.

Since then, every so often we will get a strong sewer gas smell in the adjacent laundry room, which is a small room. The only drain in that room is the washer drain. If your bathroom smells like sewage, you may have a serious plumbing or ventilation issue.

A master plumber explains possible causes, and ways to fix the problem. The sink in the same bathroom had a siphoning s-trap that was also rank, p-trap and a vent for you sir! Immediately after finishing the shower drain I found a leak had sprung from this botched silicone joint going into the cast drain Wonderful! Had to hunt down a fernco donut and went to work on the lead joint. I recently had our bathroom remodeled.

During the remodel the contractor moved the drain to accommodate a new shower. Since the remodel if no water has been run in the shower for 5. Occasional sewer like smell coming from bathroom We purchased a home built in the 80s with so-so renovations and questionable DIY done over the years.

But even so it's a solid house and we love it here. But, I don't even know how to explain this: at completely random, our powder room emits a horrible stench, like a sewer.