Dynamic water distribution system

A mobile cleaning robot movable about a flooring surface of an environment, the mobile cleaning robot comprising:

• a body at least partially defining a reservoir configured to store liquid therein;
• a wicking port connected to the body and configured to wick liquid from the reservoir to outside the body;
• a pad tray connected to the body and movable with respect to the body between a stored position and a deployed position;
• a cleaning pad connected to the pad tray and moveable therewith, the cleaning pad configured to transfer liquid from the wicking port onto the flooring surface when the cleaning pad and pad tray are in the deployed position;
• a vent connected to the reservoir and configured to expose a volume of the reservoir to a pressure of the environment;
• a drive system connected to the body and connected to the pad tray, the drive system operable to move the pad tray and the cleaning pad with respect to the body between the stored position and the deployed position;
• and
• a cover connected to the drive system and movable therewith between a covered position when the pad tray is in the stored position and an uncovered position when the pad tray is in the deployed position, the vent configured to expose the reservoir to the pressure of the environment when the cover is in the uncovered position to allow the liquid to be transferred liquid from the wicking port onto the flooring surface.