Kenny Litalien might call himself a drain cleaner, but he’s really a gumshoe. When customers have sewer-line mysteries, Litalien loves puzzling out the answers. Over the last 10 years he has built a thriving drain-cleaning and inspection business, Mass Sewer & Drain, in suburban Boston. But things really took off about four years ago when he began to offer line locating.Locating is a challenge that delights, but he shied away from it for years — until he found equipment that he liked. “When you’re wrong, it’s expensive,” he says. A new locating system he bought a few years ago turned
