Narwal Robot Vacuum and Mop Narwal is a relative newcomer to the market for robot vacuums. It's a sweeper/mopping hybrid that's quite impressive. It's also costly and is hampered by a clunky app with a steep curve. To mop, you drop a detergent sheet into the base station's water tank https://robotvacuum31153.blogdun.com/28234692/15-unexpected-facts-about-eufy-robot-vacuum-that-you-didn-t-know-about