Narwal Robot Vacuum and Mop Narwal is an relative newcomer to the robot vacuum market. It's a sweeping/mopping hybrid that's pretty impressive. It's costly and is hindered by a slow, clunky learning-curve app. To mop, you place a sheet of detergent into the base station's water tank that is clean. https://cleaning-robot-mop-and-va02183.qowap.com/87347792/20-best-rated-robot-vacuum-websites-taking-the-internet-by-storm