Kelly, thanks for your input. There is only enough space to get a 1_4 air hose into the tube. I tried adding a hose barb to give a more concentrated stream of air but still no luck. Unless something else comes up, I will remove the side skin so I can run a copper tube into the corn along with a I hose connected to a vacuum. I think blowing air in while removing debris with the vac will clean it. Tom