you should only have a city water inlet, that screws onto the end of a hose and the FW tank fill inlet, which doesn't thread into a hose.
newer Roos have a winterizing inlet but i don't know much about them, since mine is older and i don't have to winterize living in California.
pics are always more helpful.
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Dan-Retired California Firefighter/EMT
Shawn-Musician/Entrepreneur/Wine Expert
and Zoe the Wonder Dog(R.I.P.)
2016 PrimeTime TracerAIR 255, pushing a 2014 Ford F150 SCREW XTR 4x4 3.5 Ecoboost w/Max Tow Package
4pt Equal-i-zer WDH and 1828lbs of payload capacity