We are in the middle of grinding the floors in my house to do a microfinish overlay. If this were a customers, I would be out of biz . . . there is dust everywhere. I rented an edco surface grinder and an edco concrete vacuum and thought this would hold the dust down. The edco vac was not working really at all so I took that back and we were alternating between 2 rigid vacs because the filters get plugged so quickly. I ordered the crusader backpack sprayer a month ago and just love it so I decided to go with their vacuum. Does anyone have any opinions on how the crusader vac works for grinding applications? Or any suggestions as to how to keep the dust down in general . . . using a surface grinder or our 7 inch grinders with metal shrouds? Thanks!