My concern and that of most folks seems to be the possibility of the tank falling out of the camper with a full load of water. We are here in Alaska, and we have done a fair amount of boondocking. I hate to carry a full load of water, especially over rough roads, so I try to keep the level about half full. This is complicated by the relatively unreliable water gauge. When the tank is filled, it will bulge slightly on the bottom, so I have stretched a ratchet strap across the underside of the tank. It probably won't help, but it makes me feel a bit better.