I do have a drier. You may be on to somthing about the vibrater. I have been hitting the bottom of my catch funnel with a hammer. An auger to push the beads into the airflow would work too. The top of the 50 lb tank has air to pressurize the tank. Then the air goes through the venturi, as it stops up the pressuer equalizes and the flow stops. The little ball valves that you adjust to mix the air and media have to be constantly Fcd with. I have to take out my gloved hands, turn off the air. There has to be a better way or nothing would get sandblasted EVER! I'm through messing with it today, but I may better look again at my moisture control. Here are some particulars, http://www.nortonsandblasting.com/nsbdryair.html
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