Editing Fire hydrant (section)

==Non-pressurized (dry) Hydrants {{anchor|DRY|Fire pond}}==
[[File:Dry Fire Hydrant in East Haven, Vermont April 2018.jpg|thumb|upright|A dry hydrant by [[Passumpsic River]] in rural [[Vermont]]]]
In rural areas where municipal water systems are not available, dry hydrants are used to supply water for fighting fires. A dry hydrant is analogous to a [[standpipe (firefighting)|standpipe]]. A dry hydrant is usually an unpressurized, permanently installed pipe that has one end below the water level of a lake or pond. This end usually has a strainer to prevent debris or wildlife, such as fish, from entering the pipe. The other end is above ground and has a hard sleeve connector.

When needed, a pumper fire engine will pump from the lake or pond by [[drafting water]]. This is done by vacuuming the air out of the dry hydrant, hard sleeve, and the fire engine pump with a primer. Because lower pressure now exists at the pump intake, atmospheric pressure on the water and the weight of the water forces water into the above-water portion of the dry hydrant, into the hard sleeve, and finally into the pump. This water can then be pumped by the engine's [[centrifugal pump]].