removing fresh water tank on Mesa Ridge 320 RES

Look for the drain point for the tank sticking out the bottom of the unit this will give you a good idea of where the tank is located. When the approximate location of the tank is found then remove the screws holding the belly wrap (the black plastic stuff covering the bottom) with some of the screws removed you should be able to pull it down enough to see in under it. Look to see what is holding the tank up it could be angle iron, straps around the tank,etc. At this point you should be able to decide how much belly wrap will have to be removed, you may have to cut it if there are no seams in it. Make sure the tank is empty and remove whatever is supporting it and lower it down enough to remove fill pipe and suction tube continue to remove tank.