I was getting ready to place my order for the 320 and re-read my Dometic manual that came with the TT when I noticed something that has given me pause. The Rough-in dimensions for the 300 model shows the distance from the wall behind the toilet to the center of the hole in the floor to be 8.5", whereas the same spec for the 320 model shows a distance of 11.0"... 2.5" further from the wall. Now the spec for the 310 model (which I don't want) is 8.75", just .25" further from the wall, so I suspect replacing the 300 with the 310 would not require any modifications, but I'm worried about that big 2.5" stretch.
Did you guys who made the upgrade install the 310 or the 320 model? If the 320, how did you get around the 2.5" difference?
Bill & Lynne
2014 Flagstaff MicroLite 21FBRS
2013 Nissan Frontier SV CC 4x4