All the play sand that I have had experience with isn't a very pure sieve. Lots of pebbles and larger particles. I'd be afraid it would get a piece in the nozzle, clog, and blow up the hose.

I'll pick up some of the BB and try it out. May try the method of reuse and see how it works. After all, that's what my extra parts cab is for, experimentation.

How many pounds do you think I would need to do the complete frame? Haven't blasted anything in about a decade. So not exactly going to be the most efficient operator.