Abstract: A method of detecting and locating a fluid leakage in a fluid pipeline network includes providing a plurality of sensors in an area of the pipeline network. Each sensor is configured to output data relating to an acoustic or vibration measurement associated with a part of the pipeline network proximate said sensor. The method further including recording the acoustic or vibration measurement output data, transforming the output data from a time domain to a frequency domain, determining a leakage condition, computing a sum value of the measured frequency values and associating said sum value with a corresponding sensor of the plurality of sensors, and locating a source of the fluid leakage by identifying one or more sensor(s) of the plurality of sensors in the area of the pipeline network that is closest to the source of the fluid leakage.

Abstract: A hot water unit fluid supply control system for a hot water unit is disclosed. The hot water unit has a heating system that is operable in a heating cycle to heat up water in at least a first region of the water unit, and a sensor arrangement for sensing a temperature of water of the hot water unit. The control system comprises a control unit configured to: receive operational data relating to an operation of the heating system; receive temperature data from the sensor arrangement; and allow for a volume of water from the first region to be released from the hot water unit as treated water or usable water based on: the operational data, and the temperature data from the sensor arrangement.