I put one under my 2018 Thor Siesta 24SS just behind the rear wheels. I used very large metal hose clamps(worm clamps) to attach it to the underside. It opens just behind the rear passenger compartment so that that compartment door has to be open to gain access to the sewer hose. It works great. I also carry a short 5 foot sewer hose in a large plastic bin with a lid that I use most of the time since I try to park near the campsite sewer dump.
Paul
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