On my 207 3500RL Montana, I installed a PVC pipe across just behind the rear wheel. On the far end, I placed a open floor drain and at the open end placed a small chain with a cup hook to strap the hose end to the tube. The connection fitting extends out and the chain is placed across between the connection hooks to the cup hook. The reason I used a floor drain at one end was to let the hose (vent) air dry while traveling. It is much easier to work with a dry hose then a wet one. Also, having it open at both ends, you don't get any odors built up in hose or wet slug when pulling it out.
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