Plumbers are a versatile bunch of people. Not only can they unstick stubborn clogs in record time, they can also perform much needed maintenance on your sewer line, ensuring you don't have a backup in the middle of Thanksgiving dinner. But if you thought that a plumber's job was relegated to mainly pipes, think again. Below are some plumbing services that you may have not thought about — more than a few of which may come in handy for your next project.