I got ahold of an old vac motor, and made a cage for it out of perforated metal, and just put two shop vac filters plus the foam precleaner filter on the cage. Been going strong with no signs of problems using aluminum oxide grit in my blast cabinet. I used a 5 gal bucket with snap on lid for the vac container.
-- Visit my website: Remove nospam for correct address http:// snipped-for-privacy@hotmail.com Contents: foundry and general metal working and lots of related projects. Regards Roy aka Chipmaker // Foxeye Opinions are strictly those of my wife....I have had no input whatsoever. Remove nospam from email address