Narwal Robot Vacuum and Mop Narwal is a relative newcomer in the robotic vacuum market. It's a sweeping/mopping hybrid that is pretty impressive. It's costly and is hindered by a cumbersome, slow learning curve application. Drop a sheet of soap into the tank of clean water at the base station https://robot-vacuum-black-friday09219.blogdon.net/10-eufy-robot-vacuum-tricks-experts-recommend-43844821