 When it comes to clearing drains, my experience has been that plumbers are not the best ones to do that. Generally, you're better off to go with a specialty plumber that does drain cleaning. They have the tools, equipment, and the knowledge to get that done. And sometimes the day-to-day plumbers, if it's a simple clog, they can clear it, but they don't necessarily have the tools. I mean, for example, drain cleaners have cameras that can go down those pipes and see exactly what the obstruction is.