I do. When I see it start throwing love chunks I lay it down and hit it the brush and metal bar with my 2" hose. That just bugs me and I don't like my customer seeing chunks of debris being thrown around. But that's just me. I'm quirky.The brushes will put down crap every time you go from carpet directly to tile. Does anyone actually clean the brushes while on the job? Just run the CRB in a small area until it looks like nothing more is coming off the brushes.