Narwal Robot Vacuum and Mop A relative newcomer to the robotic vacuum market, Narwal offers a sweeping and mopping hybrid that's pretty impressive. But it's also expensive and is hampered by a clunky application with a steep learning curve. Drop a sheet of detergent into the clean water tank at https://robotvacuum31153.blogdun.com/28212351/10-best-rated-robot-vacuum-tips-all-experts-recommend