The faucets I am going to have a garden hose type valved "Y" but instead of separating one flow into two, it will join the hot and cold and be flexible enough to go back into the wall when I fold up the sink and come out over the sink when I fold down the sink. (just enough to wash hands and for running water to fill drinks, maybe a sponge bath inside the trailer... Otherwise, I'd just water proof all the walls, and the cabinet doors, put everything away and have shower heads at the ceiling peak to shower indoors... put a drain in one corner with the right tilt when I park...
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