Frame Separation. It happens on the rear bath models. There's plenty of posts dealing with this issue here. Try searching for "Frame Separation", and "Bathroom Floor Replacement".
This forum has provided a wealth of information for me. You've come to the right place!
Originally Posted by Jalina
Looking at the back of the trailer where the bumper is mounted there is a gap
between the skin and the frame and storage door. Could this possibly be that the frame is broken somewhere? Also you can lift up the bumper and close the gap up. The bumper and the frame will move up about one inch or a bit more.
Would appreciate any kind of information on this problem.