I just acquired a Hoover Saavy with the 4 roller brush design. The customer traded it in because the slide switch was defective, so I put a new one in. I'd like to know what others think about this setup, since I don't think it's been discussed here on the forum yet. Seems like a very complicated machine. I had a Windtunnel V2 into the vac shop where I work about a year ago, and the ends of the brushrolls melted. I'm surprised Hoover doesn't have some kind of safety where the motor cuts off if the roller brushes are jammed. The new Saavy now has a single roller brush. Any thoughts on this?
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