Trusted a 30 year old rotary brush and it cost me a full Saturday
Last month I was up on a roof in Modesto and my old rotary brush just seized up halfway through a flue. It had worked fine for years, so I kept putting off replacing it, figured why fix what ain't broke. Turned out the bearing had been grinding for a while, I just ignored the noise. I spent the whole afternoon pulling it apart and cleaning out the shaft, then had to reschedule the last job for Monday. That's when I finally listened to my buddy who swears by checking brushes every 200 sweeps. Now I keep a spare in the truck, but I had to ask, how often do you guys actually swap out your rotary heads before they fail on you?