In the youtube video you can see the yellow lever that is in the closed position. Push in on it and turn it 90 degrees to the left (pointing to right side of vehicle). That will drain out the fuel bowl, but you don't need to drain the whole thing. Just enough to get the water that collects in the bottom of the bowl.
2006 Keystone Outback Sydney 30 FRKS
1997 Ford F350 Auto, 4.10LS Axle, 160,000 Miles, Crew Cab with DRW.
US Army 1984-2016.