Anyone who has stored a sewer hose in the square bumper on the back of their RV knows what the inside of that bumper can do to the hose. The least of which is coat the hose with an ugly layer of rust and over time moving around in that rusty bumper can wear a hole in the hose. On the outside that bumper may appear pristine with a nice coat of paint but on the inside it is just bare metal. It will usually start to rust before the RV reaches the dealer. This past week we took our new motorhome out for the first time after getting it home. Arriving at the campsite we were not happy when we pulled our nice new sewer hose out of that rusty bumper. We are not new to the 3 inch sewer hose but for the past 13 years have been using a Sanicon system with the small hose that stored in the service bay. We have downsized and reverted back to the 3 inch hose. We recall installing 4 inch square PVC fence posts on previous RV’s to avoid the rusty bumper. One of the reasons we purchased the Quantum JM31 was because it was low to the ground and did not have troublesome electric steps to worry about. Ingress/egress is easy without staining my wife’s ankles so raising the coach is not an option. Because the coach is so low to the ground under the coach sewer hose storage is not practical. We decided to line the bottom of the bumper with a material that would not rust. For years we carried a roll of 1/8 inch thick rubber sheet that could be rolled out when working under the motorhome while away from home. We cut a 3.75 inch strip off that roll and slid it into the bumper. We hope that will do the trick.
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