I have searched this site and found what I think is the answer to my question, but I still am not quite sure. I am remodeling my master bath on the second floor of my home. I need to move my toilet approximately 4 feet from it's current location. The current drain for th toilet goes horizontally down to the basement through a wall. My question is: Is there enough room between the floor and the 1st floor ceiling (12"') to accomplish this?