Method and system for detecting water system leaks

Details Method and system for detecting water system leaks Method and system for detecting water system leaks

E - Fixed Constructions

03

B

E03B 7/07 (2006.01)

Patent

CA 2628897

A methods and system detecting water system leaks provides detecting of water leakage having very low flows. Very low flow leaks are detected by detecting drops in a building water system pressure when the water supply source is disabled. The water system is disabled by an electrically controllable valve, which may be turned off in response to a motion detector that detects that no human activity is present in the building. The rate of pressure drop is used to determine the magnitude of the leak, and multiple thresholds can be used to detect slow leaks versus more serious leaks. A humidity detector may also be incorporated in the system to detect abnormal humidity conditions and shut the electrically controllable valve in response. Appliance current consumption can be detected and used to override motion-sensor based shut-off of the valve, so that water-consuming appliances can continue to operate.

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