Warning: The old sweep in Gary, Indiana taught me to check the flue before blaming the brush
Last week I got called out to a ranch house in Gary where the brush kept jamming about 4 feet down, and I was ready to tell the homeowner he needed a whole new liner. The guy who trained me 6 years back, Dale, used to say the brush never lies, so I ran a camera down and found a bird nest packed tight right where the smoke shelf sits. What's your go-to trick for spotting a hidden nest before you start jamming a brush down there?