Hay, I found the drain, Looks well designed, big plastic plenum on the fire wall that tapers down and has a rubber end, just like the guy said...like an elephant trunk. And the coweling looks easy to remove, however it is clean inside.
When I get home I will run a garden hose into the coweling to see if that plenum is blocked. Otherwise I am guessiing that maybe the coweling has a leak or need re-caulking?

Any ideas??