Abstract: A method for operating a multi-family/commercial plumbing system includes sensing an event and recording for each sensed event at least one parameter selected from the group consisting of date, day of the week, start time, duration of the event, water flow, water temperature, and humidity. The parameters are analyzed to determine a pattern and thereafter water flow, circulation, water temperature, and water use are controlled in accordance with the determined pattern.

Abstract: A method of operating a plumbing system having a circulating pump includes sensing activation of the pump and recording for each sensed activation at least one parameter selected from the group consisting of date, day of the week, start time, duration of pump activation, hot water flow, and temperature and cold water flow in temperature. The parameters are analyzed to determine a pattern of pump activity and thereafter the pump is activated in accordance with the determined pattern.