Bubbling in the toilet Home › Forums › Public Forums › Drainage & Sewerage › Bubbling in the toilet This topic has 3 replies, 4 voices, and was last updated 16 years, 10 months ago by nitzia. Viewing 3 reply threads Author Posts 18 Dec 2006 at 3:24 am #279572 MasterPlumbersKeymaster Quick Question. When water is poured down the drain in the bath and the basin, the toilet has bubbles in it. What could be causing this? 18 Dec 2006 at 10:50 am #301203 Retired plbg1Participant Sounds like you have a partial stoppage in main line from toilet, have it cabled out are do it yourself. take up toilet and run cable through the openning. Art retired plbg 20 Dec 2006 at 7:51 am #301204 nicktheplumberParticipant The only thing that could cause this is an obstructed or inadequate common vent to the toilet/bath. NtP 24 Jan 2008 at 5:42 pm #301823 nitziaParticipant What I think is it may the cause of air. Bubbles in water come only because it carries air with it. Author Posts Viewing 3 reply threads You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In