A method and apparatus provides an enclosed pipe repair where two pipe segments extend through first and second ends of the enclosure to a volume in the enclosure housing the repair. The enclosure surrounds the repair to hopefully prevent roots from accessing the repair in many cases, and if a second problem exists, to provide access to the site of the repair through a lid in the enclosure.

A high pressure jetting system for use with a water supply system includes a recirculating unit to connect to an isolated section of the water supply system. The isolated section remains under water supply system pressure. The recirculating unit includes a filter unit and a pump unit capable of generating a circulating flow of water. A first pig launch and recovery apparatus couples a first hydrant to the recirculating unit and a second pig launch and recovery apparatus couples a second hydrant to the recirculating unit. A jetting unit including a jetting head is coupled to a jetting hose. The jetting unit enters the closed circuit through the second pig launch and recovery apparatus and travels within the isolated section. The jetting head emits a plurality of water jets to assist removal of material from an inner surface of the water mains and pipes.

A high pressure jetting system includes a recirculating unit connected to an isolated section of a water supply system which remains under system pressure. The recirculating unit includes a filter unit and a pump unit generating a circulating flow of water. A first pig launch and recovery apparatus couples a first hydrant to the recirculating unit and a second pig launch and recovery apparatus couples a second hydrant to the recirculating unit. A camera unit including a camera and drogue chute enters through the first apparatus and travels in a flushing flow direction to the second apparatus. The drogue chute is then removed from the camera. The camera then couples to a jetting unit having a jetting head and hose and re-enters through the second apparatus. The jetting unit emits a plurality of water jets to move in a counter-current flow direction and remove material from the water mains.

A drinking water supply system includes a drinking water line system, a plurality of drinking water withdrawal points connected to the drinking water line system, at least one sensor which is designed to determine measuring values, and a central control device which is designed to receive and evaluate the measuring values determined by the at least one sensor. The system also includes a presence detector designed to determine information about the presence of a person, or an acoustic sensor designed to measure measuring values for the volume. The central control device is designed to control the drinking water supply system as a function of the information about the presence of a person or as a function of the measured values for the volume. A method for controlling such a drinking water supply system and a computer program that causes the method to be carried out are also provided.

The invention concerns a method of treating the pipes of the drinking water network of an aircraft for cleaning purposes, said network comprising at least one storage tank and a plurality of pipes providing a plurality of water inlet and outlet points, notable in that it involves the following operations: —injecting water at a high temperature of between fifty and one hundred degrees Celsius into the network, for treatment purposes, —draining, —injecting cold water at a temperature no higher than thirty degrees Celsius combined with chemical treatment products comprising a chlorinated product or hydrogen peroxide, —draining, —injecting water at a high temperature of between fifty and one hundred degrees Celsius for rinsing purposes, eliminating the chemical treatment products comprising a chlorinated product or hydrogen peroxide, —draining. Applications: cleaning the drinking water network of an aircraft.

A pig launch and recovery apparatus independently mountable to and removable from a water supply system including at least one water main and valve. The pig launch and recovery apparatus comprises a flow tube and a launch and recovery tube. The flow tube includes first and second flow ends and a main flow valve located between the first and second flow ends. The first flow end is removably mounted to a recirculating unit including a pump. The second flow end is removably mounted to a first point in the system. A launch and recovery tube further includes first and second launch ends, wherein the first launch end is fluidly connected to the flow tube between the first flow end and the main flow valve, and wherein the second launch end is fluidly connected to the flow tube between the main flow valve and the second flow end.

The invention relates to a drinking water supply system including a drinking water line system, a plurality of drinking water withdrawal points connected to the drinking water line system, at least one sensor which is designed to determine measuring values, a central control device which is designed to receive and evaluate the measuring values determined by the at least one sensor, a plurality of decentralized control elements which are designed to influence at different locations in the drinking water supply system one or more properties of the water guided in the drinking water supply system, wherein the central control device is designed to control the control elements for influencing the one or more properties of the water guided in the drinking water supply system, and wherein a plurality of control elements are or can be combined to form a virtual group.

A plumbing fitting includes a housing and a missing valve. The housing includes a first aperture, a second aperture, a third aperture, and a mixing chamber in fluid communication with the first aperture, the second aperture, and the third aperture. The mixing valve is disposed within the housing. The mixing valve includes a first flow control valve that is configured to control a first flow of fluid from the first aperture to the mixing chamber.

A device for monitoring manual flushing of a hydrant includes an adapter attached to a flushing hose and attachable to an outlet of a water hydrant, an access port on the adapter, the access port being sized to take a sample of a stream of water flowing through the adapter, a flexible hose attached to the access port, an analyzer box containing a sensor adapted to sense a characteristic of water, the sensor being operatively connected to the flexible hose, and an alarm operatively attached to the sensor.

A jetter system for removing debris such as leaves, branches, mud, and trash from sewer pipes and from other types of pipes is disclosed. The jetter includes a rechargeable battery that provides direct current (DC), a DC/AC converter, and an AC motor that drives a water pump, or the like means for improved powering and debris removal.