Moving a toilet over an inch.
I have to move my toilet over an inch away from the wall per inspector's order. The top of the main sewer line is 4" below ground level encased in the concrete foundation with a 4" 90 degree street ell (spg x hub) at the end. The end of the elbow is .5" below ground level. I found an abs offset closet flange that fits inside 4" or over 3" pipe but it would raise my toilet 2" off the ground because of the 4.5" height it has. If I want to use the abs offset flange, I cannot replace the elbow because there is no elbow with that tight of a bend to work for proper sewage drainage. I found a 4" x 2" cast iron flange that would keep my toilet at ground level. Anyone know if I can connect a cast iron fitting to an abs elbow? Is so, what would be the best way to do it in order to prevent it from leaking?