I cleaned ours the other day but did not take that much apart. Got a piece of wire about the size of a toothpick, then laid down on one side of the air and found the grommet and bent the wire with a 90 degree and stuck it up into the hole where the water is supposed to come out. Did one side and then went over to the other side and did the same thing. Maybe this will work for you.
2011 jayco 33rlds, 2002 Ford excursion, v-10, 3:73 gears 4x4 mine. 2008 Suzuki sx-4, hers. Retired Air Force, now Retired.