The illustrative embodiments described herein are directed toapparatuses, systems, and methods for managing liquid flowassociated with a tissue site that involves using reduced pressureto control fluid flow. In one instance, an apparatus includes a firstvalve and a second valve in fluid communication with a reduced-pressuresource. The valves are movable between an openposition and a closed position and are operable to change flowstatus (open to closed or vice versa) based on a presence ofreduced pressure. At least one of the first valve or the second valveis in the closed position to obstruct a flow of a liquid while the otheris in the open position. The apparatus also includes a reservoirfluidly coupled to the first valve and the second valve. Othersystems, methods, and apparatuses are presented.
