I know better than most about the 3795 water tank, Seeing how ours fell out the first time we fill it. It is mounted in front of your front axle. I posted all the fixes to our tank on here a few years ago. The pics are still in my past posts. I think they are name Water tank fixes. I also have pictures of the vent fix that made our rig take a full tank now. Just look under my name and go to all of Loco post and you will find the pictures of my repairs to our rig. Just Always remember YOU CAN NOT FILL FASTER THAN THE TANK CAN VENT!