A device and method of pressure testing a conduit structure to determine if there is a leak in conduit layout, which includes employing a pressure testing device having a first part having a coupling end for sealably connecting to a first conduit portion, a second part communicably connecting to the first part having a valve connection adapted to receive one of a positive pressure source a negative pressure source, and a pressure meter operably connected to the pressure testing device, wherein the valve is open to receive one of the positive pressure source and the negative pressure source, the pressure meter displays one of a positive pressure and a negative pressure, opening the valve to receive one of the positive pressure source and negative pressure source, and reading the pressure on the pressure meter to determine if pressure is being maintained.

Shower drain assemblies and their components are disclosed. In examples, a shower drain assembly may include a receptor, a threaded flange, an optional hair strainer, a plate, and a protective cover. The receptor may include an upper portion and a lower portion. A portion of a threaded flange is receivable into the upper portion. An internal diameter of the lower portion may be less than any internal diameter of the threaded portion. A membrane may be coupled to an interior cavity of the threaded flange for pressure testing the drain assembly. The threaded flange may also include a tab to facilitate coupling of the threaded flange to the receptor and/or securing of a hair strainer inside the interior cavity of the threaded flange. A top surface of the threaded flange may include an inset to facilitate removal of a plate. The protective cover may protect the plate from damage.

Example aspects of a nozzle cap for a fire hydrant and a method for manufacturing a nozzle cap to detect leaks in a fluid system are disclosed. The nozzle cap for a fire hydrant can comprise a cap body, the cap body comprising an inner housing and an outer housing, the outer housing defining a cavity; a vibration sensor received within the cavity and configured to detect leaks in a fluid system connected to the fire hydrant; and a metal insert contacting the vibration sensor and the inner housing.

Shower drain assemblies and their components are disclosed. In examples, a shower drain assembly may include a receptor, a threaded flange, a plate, and a protective cover. The protective cover may protect the plate, the threaded flange, or other components from damage. The protective cover may be installed directly onto the threaded flange or onto the plate when the plate is installed onto the threaded flange. The same protective cover can thus be used to protect shower drain assemblies at different stages of installation—whether or not trim pieces such as the plate have yet been installed.

A method for locating a leak (19) in a water supply network with a water source (11) and one or more water consumption meters (21, 22) on the consumer side. The method includes calculating a length of the pipe (17) between the consumption meter (21) and the leak (19) location based on a temporal temperature curve and a quantity of water flowing through the at least one consumption meter (21).

A nozzle cap assembly includes a nozzle cap defining a bore, the bore defining internal threading configured to mount the nozzle cap on a nozzle of a fire hydrant; an enclosure attached to the nozzle cap; a vibration sensor positioned within the enclosure; a circuit board positioned within the enclosure, the circuit board connected in electrical communication with the vibration sensor, the circuit board configured to process an electrical current transmitted by the vibration sensor; and an antenna connected in electrical communication with the circuit board, the antenna configured to transmit a signal received from the circuit board.

Methods, systems, and apparatus, including computer programs encoded on a storage device, for water monitoring are disclosed. A system includes one or more processors and one or more computer storage media storing instructions that are operable, when executed by the one or more processors, to cause the one or more processors to perform operations. The operations include determining with a leak sensor that a water leak is occurring at a property; after determining that the water leak is occurring at the property, determining that a water usage profile of a particular water consuming device matches characteristics of the water leak; based on determining that the water usage profile of a particular water consuming device matches characteristics of the water leak, identifying a water consuming device that is likely leaking; and in response to identifying the water consuming device that is likely leaking, performing a system action.

Example aspects of a nozzle cap for a fire hydrant and a method of detecting a leak in a fluid system are disclosed. The nozzle cap for a fire hydrant can include an outer housing defining a first end, a second end opposite the first end, and a substantially circumferential wall extending from the first end to the second end; an antenna coupled to the substantially circumferential wall of the outer housing; a cap cover coupled to the outer housing at the first end; and an inner housing coupled to the outer housing at the second end.

Provided is a water leakage detection method for detecting water leakage of a water pipe by a water leakage detection apparatus that includes a processor and a display device. The method includes: a first procedure of the processor acquiring a water leakage detection result of the water pipe in a district metered area, the district metered area being a range to be measured by a flow meter; a second procedure of the processor acquiring a water leakage detection result of the water pipe obtained based on measurement data of a vibration sensor terminal attached to the water pipe; and a third procedure of the processor outputting, a screen for displaying the water leakage detection result obtained based on the measurement data of the flow meter together with the water leakage detection result obtained.

The present invention provides methods and apparatus for determining a fluid leakage volume in a pipeline complex, the method including providing a leakage measurement apparatus, determining a fluid flowrate through the leakage measurement apparatus and adjusting an externally controlled pressure located at a pressure point in said apparatus thereby determining said fluid leakage volume.