A slow drain rarely shows up out of nowhere. In most homes, it starts as a small change you barely notice: the kitchen sink takes a few extra seconds to clear, the shower backs up a little during a long rinse, or the bathroom sink gurgles when you run the water. In Massachusetts, those “small” signs matter because they often turn into weekend emergencies at the worst possible time. Cold snaps can expose weak spots in older plumbing. Heavy rain or snowmelt can overwhelm alread