Has anyone had any experience with the Kennard dual flush rear outlet with 7 inch rough in or similar toilets that have a wall discharge. I am putting a powder room in a loft. Directly below the toilet are ceiling beams from the ground floor room so floor discharge is not an option. I can tie into the main waste line with an 6 inch waste pipe with a 10' drop to two elbows at ground level. The first elbow to come out of the wall and the second to go into the main waste pipe. Any advice or knowledge of the euro rear outlet toilets appreciated. Likely will use the toilet for liquids, not solids.