bought a new one and blasted ONE chasiss with it and sold it for half price. If it want go in my bead blasting cabinet it goes to a local professional guy! It just taint worth it to me......but I do like the idea of getting rid of the original plumbing below.
.....for sand, I buy true, sized, blasting sand where I buy my concrete block and brick. Fine, medium or extra fine. 50 pound bag for under 5 bucks and its close by, no moisture and package nicely to prevent any.