A drinking water filter assembly has a filter cartridge which includes a filter element contained in a pressure vessel for unitary disposal, the cartridge received on a base containing attachment fittings for ease in installation and replacement with limited exposure to contaminants during a filter change. At least one positioning device is configured to move the first support in an axial direction relative to the second support. The management system comprises a guard manager, adapted to monitor a status of the managed device relating to the predefined process, and an environment in the managed area. In a preferred embodiment, the method of the present invention treats cocaine addiction or methamphetamine addiction.