I need to replace a toilet flange that has been leaking for a long time and has rotted the subfloor. I'm not sure where to make the cut in the drain pipe. Does it matter? I tried using a Dremel tool to cut off the pipe about 3" below the flange but kept breaking the blades. I haven't tried a hack saw yet. I also have a sawzall, but not sure if it will make a clean enough cut. Where would be the best place to make the cut? I'm attaching some pics to give an idea of what I'm dealing with.
I just did the almost exact same repair. I got a repalcement flange and aslo a coupler that went insdie the pipe and then the new flange fits inside the coupler. I cut the old flange right where it connects to the pipe, ie just below the flange. I used a hacksaw.