Narwal Robot Vacuum and Mop Narwal is a relative newcomer in the robotic vacuum market. It's a sweeper/mopping hybrid that's quite impressive. However, it's expensive and hobbled by a clunky application with a steep learning curve. To mop, you place a sheet of detergent into the base station's water tank https://automatic-vacuum-and-mop24575.collectblogs.com/73355174/the-often-unknown-benefits-of-best-rated-robot-vacuum