Narwal Robot Vacuum and Mop Narwal is a relative newcomer in the robot vacuum market. It offers a sweeping/mopping hybrid that's pretty impressive. It's costly and is hindered by a clunky, steeply learning-curve application. Drop a sheet of detergent into the clean water tank at the base station to mop. https://robotvacuumblackfriday57170.bloggactif.com/28307546/learn-what-best-rated-robot-vacuum-tricks-the-celebs-are-using