Valves 1 & 2 are low point drains...they need to be CLOSED
Valves 4, 5 & 6 are for filling fresh water tank/using water from fresh water tank.
Valves 7, 8 & 9 are for water heater. 7/cold inlet 8/hot outlet 9/bypass
Water heater in service..7/8 OPEN 9 CLOSED
Locate where water heater is inside rv. Valves will be on backside of water heater (opposite of outside access down)
Follow valving chart to use 'city water' ; fill tank or use pump w/tank
ON EDIT:
CONGRATS!
Found it while I was posting/typing (slow 2 finger hunt/peck)
