Fresh water tank

One more thing I would like to add, and this may not apply to any of the newer motorhomes, bu may apply to some of the older ones, and that is the manner in which some of the holding tanks are fastened to the underside. In some cases, the tanks are merely held by at most four L shaped brackets to the lip that protrudes from where the two halves of the tanks are joined together. I learned from personal experience that the weight of a full tank is just to much for the lip, which can break. In a motorhome I previously owned, that is exactly what happened. I had to jury rig a couple of 2 by 4's under the tank to support the weight. Like I said, not all motorhomes are built the same, but that was one reason I did not always carry a full tank of water in any of the tanks.