Narwal Robot Vacuum and Mop Narwal is an relative newcomer to the robot vacuum market. It's a sweeper/mopping hybrid that's pretty impressive. It's costly and is hindered by a clunky, steeply learning-curve application. Drop a sheet of detergent into the tank for clean water at the base station to mop. https://vacuum-mop-cleaner-robot65316.blogofoto.com/58857639/a-the-complete-guide-to-best-rated-robot-vacuum-from-beginning-to-end