A drinking water supply system with a drinking water line system includes multiple drinking water removal points connected to the drinking water line system, at least one sensor, which is designed to determine measurement values, and a central controller, which is designed to receive and evaluate the measurement values determined by the at least one sensor. The central controller is designed to control the control elements depending on the received measurement values. The drinking water line system has a drinking water line section for supplying drinking water to multiple drinking water removal points. A volumetric flow rate sensor is provided in order to measure the volumetric flow rate of the water in the drinking water line section and/or a pressure sensor is provided in order to measure the water pressure in the drinking water line section. The controller is designed to carry out a measure.

The invention relates to a cleaning device, in which said device is supplied with liquid. The device is characterised in that it comprises a mobile chassis supporting a plurality of functional subassemblies necessary for the production of a hot liquid in a condensing gas boiler with sealed combustion chamber. The invention can be used to clean the pipes in an aircraft.

A method for testing for a possible water leak in at least a part of a water system, comprising: closing all known water usage taps (42) within the part of the water system to be tested; closing at least one stop cock (14) or valve of the water system to isolate the part of the water system from its replacement water source (12) (or sources), and any external replacement pressure source (or sources); and then a) detecting a first pressure PO within the isolated part of the water system at a sensor (62, 48) connected to the part of the water system, waiting a period of time t and then detecting a second pressure within the isolated part of the water system at that sensor (62, 48); and b) releasing a volume of water VR from the water system out of the isolated part of the water system via a vent (42) in the isolated part of the water system, before then closing the vent (42), step b) further comprising detecting the pressures either side of that release at that sensor (62, 48); using the pressure drop caused by the approximately known or measured volume of water VR to enable an estimate of the relationship between change in pressure in the system and the volume of water released to be established, and based on the relationship between the change in pressure and the known release volume, calculating an estimate of the actual volume of the unknown water loss volume V.sub.L based upon the recorded pressure loss in the system in the known period of time t.

A system and method for determining a leakage condition of a fluid distribution system in view of a failure to detect a no flow condition at a fluid access point of the fluid distribution system for a pre-established time duration within a pre-established time period longer than the pre-established time duration. The system includes a sensor and optionally a valve, a reporting module and/or a control means. The valve is responsive to commands directing a blockage of flow of fluid. The reporting module may include an alerting module, a messaging module, a cellular phone, and/or an electronic communications network. The control means is coupled with the valve and is enabled to direct the controlling valve to block fluid flow. The control means may be integrated with elements of the reporting module. The leakage condition may be related to a leakage in an inflow direction or alternately in an outflow direction.

The invention provides secure systems, methods and computer program products for monitoring fluid distribution within a fluid distribution network, and for validating received fluid distribution data, identifying unauthorized losses, and raising alerts in response to detection of unauthorized losses. The invention relies on a plurality of sensors disposed within the fluid distribution network, data received from said sensors, and validation and reconciliation of data based on a distributed ledger system, for detecting instances of unauthorized fluid loss.

Provided is a hot water distribution system comprising a water heater, a water pump, a controller, a temperature sensor, a point-of-use, and a diverting valve capable of directing water from the water heater to either the point-of-use or back to the water heater.

Provided is a hot water distribution system comprising a water heater, a water pump, a controller, a temperature sensor, a point-of-use, and a diverting valve capable of directing water from the water heater to either the point-of-use or back to the water heater.

Aqueous streams are ubiquitous in everyday life. Aqueous streams are invariably an essential element in most residential, commercial, and industrial environments. In residential and commercial environments, aqueous streams are utilized in indoor and outdoor applications. Indoor applications may include, but are not limited to, lavatories, showers, tubs, toilets, laundry, ice-making, drink dispensing, dish washing, pot fillers, laboratory, cooling and refrigeration, and heating. Outdoor applications may include, but are not limited to, landscaping, water features, spas, pools, washing, or even water attractions in the case of entertainment parks. Provided herein are systems, methods, and devices for identification of an anomalous aqueous stream from an aqueous source feeding multiple independent streams and remedial action directive determination thereof.

There is disclosed a system for cooling a water-cooled apparatus having a water inlet and a water outlet. The system has: a circuit in fluid communication with the water inlet and the water outlet, the circuit having a valve upstream of the water inlet connected to a source of water, and an outlet in fluid communication with a sewer; an air-cooled cooling unit in heat exchange relationship with water in the circuit; and a pump fluidly connected to the circuit; the system operable between a closed-loop configuration and an open configuration, the valve being closed and the pump circulating water between the water-cooled apparatus and the air-cooled cooling unit in the closed-loop configuration, and the valve being open and water in the circuit circulating from the source of water, through the water-cooled apparatus, and to the sewer in the open configuration.

A non-invasive thermal dispersion flow meter with chronometric monitor for fluid leak detection includes a heater, an ambient temperature sensor and a flow rate sensor which are configured to sense the temperature of a fluid in a conduit, and then monitor the flow of that fluid through the conduit. The fluid flow sensor is incorporated into a

Wheatstone bridge circuit which is used to provide increased sensitivity to the outputs of the sensors. Based upon the ambient temperature sensor readings, the flow rate sensor and heater may be adjusted to optimize the operation of the system to detect leaks. An alternative embodiment utilizes a single sensor and separate heater which work together to determine heat propagation times which in turn is used to calculate flow rate.