Hi James
I don't have your model but I do have a MB Chassis model. I bought a sewer hose holder from Camping World and bought a couple of extra large metal hose clamps(worm clamps) and just secured it to the underside of the rear of the chassis where I can access it. I can now store my full sized sewer hose with no issue. I also carry a small 5 foot sewer hose that I store inside a plastic tub with a lid and keep it inside one of my outside compartments. I use the smaller hose more than the large full size sewer hose.
Paul
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