Septic tank sewage odours Home › Forums › Public Forums › Drainage & Sewerage › Septic tank sewage odours This topic has 1 reply, 2 voices, and was last updated 24 years, 4 months ago by SylvanLMP. Viewing 1 reply thread Author Posts 8 Jul 2000 at 9:35 pm #278593 MasterPlumbersKeymaster I recently came to live in the country (Ireland) in a cottage which has a Septic Tank about 30 yards from house. There are vents coming up from the Tank. Problem: there is an odour in the area around the tank vents. How do I eliminate this odour? 10 Jul 2000 at 8:35 pm #298812 SylvanLMPParticipant check to make sure the vents are indeed working. Sometimes animals crawl inside and die blocking the vent from properly working Good luck 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