Narwal Robot Vacuum and Mop Narwal is a relative newcomer to the robot vacuum market. It offers a sweeping/mopping hybrid that's quite impressive. However, it's expensive and hampered by a cumbersome app with a steep curve. To mop, you drop a sheet of detergent into the base station's water tank https://robotvacuumthatvacuumsand60544.post-blogs.com/49153080/what-experts-in-the-field-would-like-you-to-know