I might be able to raise the airtrap a little, but I'd rather not have it sticking out above the case. I'm at work right now, so I don't have exact sizes of my case or pump, but I think I could probably get the water level in the airtrap to sit just above the pump's highest point.
I threw together the line art in Illustrator 10, and colored it and added the water line in Photoshop 7.
ps. drawing stuff on a computer is what I do:
http://talik.deviantart.com