My powder room toilet is bubbling and the plumber told me it is probably an obstruction and not a vent problem. It gets obstructed with little use, and when augered, the plumber only finds a minor amount of debris. I don't believe its a drainage pipe problem. My toilet and sink have no vents. They go straight into iron plumbing embedded in concrete foundation. Its an old house that has been remodeled, and we are not even sure there is an outside cleanout trap.
So, is ventless an option? I can't find a toilet that is self-venting, searches only seem to find the macerating upflush units.
So, is ventless an option? I can't find a toilet that is self-venting, searches only seem to find the macerating upflush units.