Narwal Robot Vacuum and Mop A relative newcomer to the world of robot vacuums, Narwal offers a sweeping and mopping combination that's impressive. It's costly and is hindered by a cumbersome, slow learning-curve app. Drop a detergent sheet into the tank for clean water at the base station to mop. https://vacuummoprobotcleaner86336.life3dblog.com/27200986/5-best-rated-robot-vacuum-projects-for-every-budget