I used sink plungers in toilets pretty much my whole life until i scrolled across a similar diagram one day and discovered the truth.
I used sink plungers in toilets pretty much my whole life until i scrolled across a similar diagram one day and discovered the truth.
I think you are failing to understand the design / curvature / multiple radius features of the exit point and that the flange style literally cannot form any remotely close to passable seal to do its job. Idk what to tell you but your not right no matter how you think you can phrase it.