2004 FLEETWOOD JAMBOREE Structurebody Problems

I OWN 3 JAMBOREE 29 FOOT CLASS C MOTORHOMES. ON AUGUST 22 2007 THE VEHICLE WAS TRAVELING WHEN THE GREY HOLDING TANK DROPPED OFF. THE TANK WAS THEN RUN OVER BY THE TRAILER WE WERE PULLING. BY THE TIME WE FOUND A SAFE PLACE TO PULL OVER WE FOUND THE TANK GONE WITH ONLY 2 OF THE 3 STRAPS THAT HOLD IT IN PLACE CONNECTED AND DRAGGING ON THE GROUND. WE RETURNED TO FIND ONLY THE 3RD STRAP, OR PARTS OF IT, AND A BLOCK OF WOOD THE MANUFACTURER HAD USED AS A SPACER. THIS WAS A CONCERN AS THE POLY TANK IS 2 BY 3 FEET AND THE METAL FRAME ABOUT THE SAME. THE SECOND INCIDENT HAD OCCURRED 3 WEEKS EARLIER ON A DIFFERENT COACH. WE FOUND WATER LEAKING FROM THE TANK CONNECTION TO THE DRAIN PIPE AS 2 OF THE 3 STRAPS HAD FAILED. THE TANK WAS SUPPORTED...