I bought this about a year ago after not being able to clean a Drano or Hand Snake. A few months ago I had a clog in the sink that I couldn't clear either, and the plumber came out. $120 to clear. Installing new plumbing for the sink would have cost another $150, but I did it myself. So, I've seen this and already used a Ryobi drill, saw, etc. and a rechargeable battery. Since then I've had 3 blockages (old house), 2 behind the wall so that was great and I cleared them. It takes some effortβ¦