I have a big old gawd awful cast iron (at least I think it's cast iron, the house was built in 1940) toilet flange that is in sorry shape.
There will never be a better time to replace it - as we have the floor above and ceiling below it open, and it desperately needs it, obviously.
I have never done anything with cast iron before, however, and do not know how I should proceed. Should I break the pipe back on the long straight stretch and connect to pvc using a rubber connector like this?
Or should I focus on just trying to replace the flange (which seems much more difficult to me...)
I know cast iron is hard to cut - is a grinder going to be more effective at cutting this stuff? (Huge mess for the kitchen below :( - but I can hang trash bags or something underneath I suppose...)
UPDATE 5 Nov 2012
The end result: