Narwal Robot Vacuum and Mop Narwal is a relative newcomer to the robotic vacuum market. It's a sweeper/mopping hybrid that's quite impressive. However, it's expensive and hobbled by a clunky app with a steep learning curve. Drop a detergent sheet into the tank of clean water at the base station https://cleaningrobotmopandvacuum51454.tinyblogging.com/why-adding-a-best-rated-robot-vacuum-to-your-life-s-activities-will-make-all-the-change-71496258