Instruction manual leaves a bit to be desired, but, with a bit of tinkering, I believe I’ve got it figured out. Download the Shark Clean app to get your robot connected. Give it a few minutes to map out your house, and (you’ll thank yourself later) label each room for a more directed clean. Two separate heads: 1.) Vacuum head will empty into a tank that only needs emptied once a month 2.) Dual mop head holds cleaning solution and has a small vacuum compartment. Cleaning solution will need replaced after each run. And vacuum compartment will need emptied independently as it does not connect to the tank. It is a bit annoying that the conversation cannot be more seamless. But, overall, this Shark product is a game changer. I love that I can set it to a schedule or deploy it to vacuum at any time from anywhere.