We lost our water tank in our 2015 FR fifth wheel last spring. We were pulling out of our driveway and heard a loud boom, stopped, got out to see what I hit. The water tanks main bracket failed, tank 3/4 full per gauge, and fell out taking the coroplast with it. It was as being held up by the coroplast and what was left of the frame. We were able to drain the tank and remove it. Gorilla taped the coroplast and an hour later back on the road.
FR stepped up and sent a factory tech to our dealer with a new tank, new tank frame and coroplast. They welded the frame on this time not relying on screws to hold it in. Replaced all 36' of coroplast also.
When the bracket/frame failed it was loud. Sounded like a bomb went off. Just glad we were not on the interstate when it happened.