Abstract: Continuous performance monitoring and an automated alert system are provided for a postoperative fluid drainage procedure. The system uses an automated controller in communication with at least one sensor that monitors the amount of liquid collected during the procedure. The controller compares current collection data with historical collection data to identify trends that can be indicative of problems in the patient's recovery or in system drainage. Upon identifying such trends, the controller automatically provides an alarm to alert the care provider so that the system can be checked and remedial action taken.