Narwal Robot Vacuum and Mop Narwal is a relative newcomer to the robotic vacuum market. It's a sweeper/mopping hybrid that's quite impressive. It's expensive and hampered by a cumbersome, slow learning-curve application. To mop, drop an ointment sheet into the base station's clean water tank. Then, the pads are sprayed https://robot-vacuum-cleaner24553.shoutmyblog.com/23974564/the-reason-why-everyone-is-talking-about-best-rated-robot-vacuum-right-now