This video give lots of information on our 150 lb sandblasting pot. It is the smaller of the two sizes we offer in our rental fleet. In this video, Dan explains the psi/cfm requirements, shows how to make proper adjustments to get the desired media flow, and advises on type of media to use.
This size pot is great for smaller jobs, but bigger ones are not impossible. This pot has a smaller tip, moves less media, and uses less air, but still gives you the same end result, just takes more time to achieve it.