Narwal Robot Vacuum and Mop Narwal is an relative newcomer to the robotic vacuum market. It's a sweeper/mopping hybrid that's quite impressive. It's expensive and hindered by a clunky, steeply learning-curve app. To mop, you drop an ointment sheet into the base station's water tank that is clean. Then it https://vacuum-robot35505.bloggosite.com/34055743/8-tips-to-enhance-your-best-rated-robot-vacuum-game