Serious question, did the $220 camera brush kit actually pay for itself for any of you?
I bought a rod-mounted rotary brush kit for around $220 back in March because I was tired of hand scrubbing creosote out of tight flues, and it cut my cleanup on a two-story job in Akron from about 90 minutes down to 40. But the first brush head chewed up a clay liner on a job in April, so I'm not sure if it's a win or a wash. Curious if anyone runs something similar and what speed you keep it at to avoid scoring the flue.
A buddy of mine runs that same kit and toasted a liner on his third job, said he was spinning it way too hot. He dropped to about half speed and lets the brush do the work instead of pushing it, and he hasn't scored one since. The kicker is he still came out ahead by summer because the time saved on two-story flues added up fast. So yours might be a wash on that April job, but it probably pays off if you keep the rpm low.