My city water inlet is on the driver's side. When I remodeled the bedroom from twin beds to a double bed, I needed a shorter water inlet for clearance and hose routing reasons. My RV store had a shorter one without a check valve that was an exact fit. Of course, the absence of a check valve means that I must use a male plug to prevent water from running out the filler when the pump is running. But that is a good idea, anyway, for cleanliness.

An added benefit is that when dry camping we now have a source of fresh water outside. I have made up a small hose with a male hose connector on one end and a sink sprayer head on the other end. When I am performing "Sewer Service", my wife stands by with the sprayer. When I am done, she sprays while I wash up. that way, I do not touch anything except the sewer stuff. The wash up hose is then put away in a clean bag. We also use it for pet washing and sand cleanup at the beach. I had planned on a separate hose in the valve area, but this is so simple, I may stick with it. This set up has the advantage of not having plumbing exposed to freezing temperatures on cold winter nights.