Yes, the top of the waste pipe is about 1 1/4" below the finished floor surface. Then there's roughly 3/4" from the top of the pipe to the concrete below that would limit how far down I can push the flange - my primary concern is that 3/4" overlap between the flange and waste pipe won't be...
The waste pipe is 3.5" OD and my replacement flange will fit over the outside. The flange is high enough (I'll actually have to trim a bit off so that it sits flush with the finished floor, if I don't chip out any concrete).
I'm replacing a closet flange in a bathroom with tile floor and a concrete subfloor. When I dry fit the flange, it overlaps with the waste pipe about 7/16" at the lowest point. Is this enough overlap to form a good seal when I cement the two together? If not, how much concrete should I chip away...