You wre looking for a blaster. Watch this about 6 min in. Its a 5 gal bucket and the hose/nozel from a blast cabinet. Small cheap and looks like it really works!
https://www.youtube.com/watch?v=tFuT-mpQHhI
Ended up watching that whole video. Interesting as F*&$. That blaster does appear to work well. Any clue as where to buy it?