Flow alert system and method

A method for filtering alerts in response to flow in a fluid conduit is described. Alerts are triggered in response to detection of flow, and the method comprises the steps of receiving a set of historical flow data relating to flow in the fluid conduit for a first time period. Identifying one or more recurring flow patterns based on the set of historical flow data. Designating one or more alert suppression periods based on the identified recurring patterns. Receiving subsequent flow data relating to flow in the fluid conduit for a second time period. Detecting flow events in the subsequent flow data to generate one or more protentional flow alerts and suppressing potential flow alerts for flow events during the designated alert suppression periods within the second time limit. Later embodiments relate to computer readable medium comprising software to perform said method and apparatus and a system for carrying out said method.