WE FILLED THE FRESH WATER TANK FOR A CAMPING TRIP. WHEN TRAVELING DOWN THE HIGHWAY AND MAKING LANE CHANGES OR CORNERING THE TRAILER WOULD START TO SWAY, I WOULD HIT THE TRAILER BRAKES TO GET IT BACK UNDER CONTROL. THE TRAILER STARTED TO SWAY AGAIN AND I LOST CONTROL, THIS TIME ROLLING THE TRUCK AND TRAILER. I NOTICED THE FRESH WATER TANK WAS LOCATED AT THE REAR BUMBER. I FEEL THE WATER SWATCHING AROUND IN THE UN BAFFELED TANK CAUSED THE TRAILER TO SWAY OUT OF CONTROL. TWO WEEKS PRIOR TO THIS WE HAD TOWED THE TRAILER IN HIGH CROSS WINDS WITH NO PROBLEMS, BUT THERE WAS NO FRESH WATER ON BOARD AT THAT TIME. I TOW THE TRAILER WITH A 2006 FORD F 150 SUPER CAB 4X4 6FT BED AND USE A E-2 STABILIZER HITCH. I HAD USE THIS SET UP ON THE 25 FT R-VISION FOR 3 YEARS WITH NO PROBLEMS. WE LOST OUR DOG FROM INJURIES FROM THE CRASH. UPDATED 12/1/2014 *JS