I need to replace a leaking toilet, but the distance from the drain to the wall is about 10.75". The selection of toilets that I'm finding in the 10" rough-in range is pretty pathetic and overpriced, especially water-conserving ones.
Ideally I'd like to relocate the drain 2" so I have a standard 12" rough-in. The problem is that my house is on a 4" slab-on-grade (with just bare dirt right under it), and the plumbing--all original cast iron-- is thoroughly entombed in the concrete. The bathroom floor is ceramic tile right over the concrete slab.
What's the best way to go about doing this without causing too much damage or destroying enough of the bathroom tile that the damage will be visible even after placing the new toilet? Or is that a given? I have a rotary hammer, a sawzall with diamond abrasive blades, a circular saw with a masonry blade, and lots of other such tools.
Or is this a patently ridiculous idea and I should just get a 10" rough-in toilet?