Narwal Robot Vacuum and Mop Narwal is an relative newcomer to the robot vacuum market. It's a sweeping/mopping hybrid that's quite impressive. It's also costly and hobbled by a clunky app with a steep curve. Drop a detergent sheet into the clean water tank at the base station to clean. https://vacuum-mop-cleaner-robot65316.blogofoto.com/58858214/this-is-a-guide-to-best-rated-robot-vacuum-in-2023