Controls the flow of water with a movable spindle, Can reduce water pressure (throttling), Only one side of the valve is an inlet

2 common types of gate valves

A water supply pipe extending vertically to one full story or more to convey water into pipe branches or plumbing fixtures.

The principal water distribution pipe running from the water meter from which the various branches and risers to the fixtures are taken

A device used to measure in liters or gallons the amount of water that passes through the water service.

A pipe from the street water main or other source of water supply to the building served.

It happens when there is a loss of pressure in the water supply. This will cause the water in your facility to flow backwards back into the water supply and/or into other plumbing connections within your facility. This situation can occur when a fire hydrant is opened, when there is a water main break, etc.

It happens when the water supply is connected to a device that creates pressure, such as a boiler, pressure washer, etc. The pressure created can be greater than the water supply, thereby creating backflow.

Pipework noise becomes significant at velocities over 3 m/s, so the system should be designed to operate below 3 m/s even if it means increasing the diameter of the pipe.

This is probably the most common cause of complaint from customers. When a valve is closed suddenly, shock waves are transmitted along the pipework making a loud hammering noise. The problem is made worse where cold water supply pipework is not adequately clipped.

No outdoor privy, cesspools, septic tank or drain fields shall be located within _________ radius from the well

There should be no concrete sanitary sewers existing within the _________ radius of the well.

Wells that are supplying water for public use should be located at a minimum distance of ____________ radius from residential areas