Rotten smell that won’t go away, you may have a sewer gas problem that’s coming from your toilet. If the wax ring is broken at the base of the toilet, this may cause the bowl to not fill properly after each flush. If there isn’t sufficient water, there may be a leak in the seal, letting sewer gas seep into your bathroom. Sewer gases can be hazardous, so it is best to reach out to a professional plumbing expert at Reliant Plumbing who can pinpoint the cause of the issue. If you feel comfortable replacing the seal, take a look at this video for helpful tips.