Narwal Robot Vacuum and Mop Narwal is a relative newcomer in the robot vacuum market. It's a sweeping/mopping hybrid that's pretty impressive. It's also costly and hampered by a cumbersome application with a steep learning curve. Drop a detergent sheet into the clean water tank at the base station to https://top-rated-robot-vacuum12451.therainblog.com/27174357/the-one-best-rated-robot-vacuum-trick-every-person-should-learn