I would like to replace the Dometic 310 with an elongated bowl Dometic 320 in my 24RDS. The issue is the rear of the 320 extends back an additional 1 inch.
What I am considering is removing the old 310 and flange and installing an offset flange that would move the toilet 1 inch out further from the wall.
My big issue as I see it is removing the old flange and connecting to the existing black pipe. As I understand it the black stuff is different from standard PVC? The things we are willing to do for comfort, lol.