I bought a HF sand blaster years ago when I was restoring MG's and Triumphs. Maybe they have improved but I can tell you that mine, out of the box is garbage. It will clog about every three handfuls of sand. I have broken the front leg off of it by tapping it on the concrete to keep the sand flowing. I have always used dry screened play sand. I've probably put 30 bags through it over the years and every time I use it I wish I hadn't even bothered. If one could be modded to work better as Jon says, then maybe it is worth your time to do that but don't expect much out of the box. Couple more observations...it takes a lot of CFM. A job site pancake compressor won't keep up. Get a water separator. The compressor will run so much and get so hot that you'll start to get moisture build-up inside the media tank which means more clogs. Wear a respirator. Good luck!
