On our eagle 321rsts we have a compartment on driver side basement for all the water and tank hookups. Rge valves for switching from city water to on board tank and tank drain valves are all in the unidock. It also has the cable/satellite, solar and the on off for the rear view camera. Has a second switch for the on board water tank pump.
TV 2016 F250 Crew Sterling Gray SB 6.7 PS airlift ultimate Air bags
TT 2012 Eagle Superlite 315RLDS