Has anyone ever built a shaker from something around the house for their pressure pot sandblaster tank? I have heard of strapping a palm sander to the side of it but I really don't think that will be strong enough for the size tank I have. I am using fine/extra fine black beauty in my harbour freight 110 lb tank and it works pretty good for 30 seconds and then clogs at the media valve on the bottom of the tank. I hit it with a rubber mallet or close and open the media valve again and it will spray again temporarily. The media bag says that it doesn't absorb moisture and I shouldn't have to sift it because it is already pretty fine stuff. i'm using the 1/8" nozzle and all the ball valves on the unit are 3/8". I start by opening the air inlet valve all the way to pressurize the tank and then back it off 1/4 of the way to keep the gauge reading about 90 psi, then open the air valve on the mixer fitting at the bottom of the tank all the way. Then I pull the trigger at the nozzle to let the air flow and slowly open the media valve to about 1/2 which seems to work the best...when it works haha. That's the best way to start it up I believe. I know it would work more consistently if I just had something shaking it.