So you're buying a house, or need someone to check work done by someone else on your digs. Michael Busch, a licensed sewer inspector, has got the camera equipment to ease your mind. He even takes smaller plumbing jobs on a case-by-case basis, with the caveat that he may be called to bigger, filthier emergencies at any time. Busch jokes that he's got a really strong immune system from being forced at many a lunchtime to eat a sandwich while checking a sewer line, but to look at him, he's sartorially sanitary. He's respectful of your turf, too, leaving behind no detritus of any kind.