There are some things around the house that your average homeowner can attempt to fix herself. Replacing a light switch, shoring up a loose piece of molding, fixing a broken floor tile -- these are all pretty basic things you might find on a honey-do list.
When it comes to plumbing, however, it's a different story. Water always finds a way out, so even the smallest mistake in a DIY plumbing repair can end in disaster. That means that when something is awry with your pipes, you need to call in a professional. When it comes to hiring a plumber and getting through a job, here are 10 things your plumber may not want you to know.