Toilet sewer gas smell. Home › Forums › Public Forums › Drainage & Sewerage › Toilet sewer gas smell. This topic has 1 reply, 2 voices, and was last updated 24 years, 2 months ago by SylvanLMP. Viewing 1 reply thread Author Posts 31 Aug 2000 at 8:41 am #278654 cmd78 Just bought a home and noticed some sewer gas smell when toilet is flushed! Toilet is about 60+ years old with visible pipe from tank to bowl. Any idea what the problem could be?? [email protected] 31 Aug 2000 at 4:45 pm #298979 SylvanLMPParticipant Partical blockage Or bad vent Author Posts Viewing 1 reply thread You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In