Our kitchen sink decided that it didn’t want to drain, which meant we couldn’t even use the dishwasher. Tried a couple of “drain cleaners,” Liquid plumber, and Draino with no effect whatsoever. Broke down after 3 days and called, Clearwater. They were out even before the time window they had given us and had the problem solved quickly without “finding” additional “problems.” Where very reasonably priced and we spent far less than I was expecting. Will definitely use in the future without 3 days of apprehension about calling a plumber.