Narwal Robot Vacuum and Mop Narwal is an relative newcomer to the robot vacuum market. It's a sweeper/mopping hybrid that is pretty impressive. It's expensive and hindered by a slow, clunky learning-curve application. Drop a detergent sheet into the tank of clean water at the base station to mop. Then, https://robot-vacuum-cleaner55221.blog-ezine.com/27766220/how-you-can-use-a-weekly-best-rated-robot-vacuum-project-can-change-your-life