Narwal Robot Vacuum and Mop Narwal is an relative newcomer to the robot vacuum market. It's a sweeping/mopping hybrid that is pretty impressive. It's costly and is hindered by a cumbersome, slow learning curve application. Drop a sheet of soap into the tank of clean water at the base station https://robot-vacuum96429.azzablog.com/27793239/5-best-rated-robot-vacuum-lessons-from-professionals