Editing Fire hydrant (section)

==Appearance==
[[File:Kawaii fire hydrant cover in Tokyo, Shinbashi.jpg|thumb|[[Kawaii]] fire hydrant cover in [[Shinbashi]], Tokyo]]
Above-ground hydrants are coloured for visibility, to signal their characteristics, or for aesthetics. In the United States, the [[American Water Works Association|AWWA]] and [[National Fire Protection Association|NFPA]] recommend hydrants be colored chrome yellow<ref>{{cite web|title=National Fire Protection Association Report (p. 18)|url=http://www.nfpa.org/Assets/files/AboutTheCodes/24/24_AUT_PRI_A2015_FReport01.pdf |work=[[National Fire Protection Association]] (NFPA) |date=August 15, 2013|quote=''All barrels are to be chrome yellow except in cases where another color has already been adopted''.}}</ref> for rapid identification apart from the bonnet and nozzle caps which should be coded according to their available flow. Class AA hydrants (>1500&nbsp;[[gallons per minute|gpm]]) should have their nozzle caps and bonnet colored light blue, Class A hydrants (1000–1499&nbsp;gpm) green, Class B hydrants (500–999&nbsp;gpm) orange, Class C hydrants (0–499&nbsp;gpm) red, and inoperable or end-of-system (risking water hammer) black. These aids arriving firefighters in determining how much water is available and whether to call for additional resources or find another hydrant.

Other codings can be and frequently are used, some of greater complexity, incorporating pressure information, others more simplistic. In [[Ottawa]], [[Ontario]], hydrant colors communicate different messages to firefighters; for example, if the inside of the hydrant is corroded so much that the interior diameter is too narrow for good pressure, it will be painted in a specific scheme to indicate to firefighters to move on to the next one. In many localities, a white or purple top indicates that the hydrant provides [[Drinking water|non-potable]] water. Where artistic and/or aesthetic considerations are paramount, hydrants can be extremely varied, or more subdued. In both instances this is usually at the cost of reduced practicality.

In [[Germany]], the [[Netherlands]], [[Spain]], the [[United Kingdom|UK]], and many other countries, most hydrants are located below ground and are reached by a riser, which provides the connections for the hoses. The covers can also be artistically designed.

<gallery mode="packed" heights="180px">
File:Fire-hydrant-demorest.jpg|Hydrant in the [[United States]] painted with an [[United States|American]] patriotic theme
File:Fire hydrant in Bonifacio Global City.jpg|Hydrant in the [[Philippines]]
File:Standrohr unterflurhydrant.jpg|[[Germany|German]] underground hydrant with [[Storz]] hose connections
File:Hydrant Fredantori Helsinki.jpg|Hydrant at Fredantori square in [[Helsinki]], [[Finland]]
File:Požární hydrant.jpg|[[Czech Republic|Czech]] example
File:Greek fire hydrant.jpg|[[Greece|Greek]] example
File:Red fire hydrant in Lisbon 01.jpg|[[Portugal|Portuguese]] example
File:Hidrante.jpg|[[Brazil|Brazilian]] example
File:Unterflurhydrant 100 0477.jpg|[[Germany|German]] underground example
File:Boca de incendio Barcelona España 1.jpg|Spanish cover in [[Barcelona|Barcelona, Spain]]
File:Fire hydrant at the University of Victoria, BC (DSCF5631).jpg|Fire hydrant in [[British Columbia]]
File:1869BirdsillHollyHydrantSideTop.jpg|[[Birdsill Holly]] hydrant side view from city water supply pipeline right-of-way land
File:Holly 4 sided top nut.jpg|[[Birdsill Holly]] hydrant top view with description and patent date information
File:Left nozzel.JPG|2016 modern fire hydrant
File:Forward nozzel.JPG|Forward hydrant nozzle
File:2016 fire-hydrant.JPG|Hydrant nozzle side view
File:Hydrant 5 sided top nut.jpg|Fire hydrant 5 sided top nut
Stettenfels Hydrant v.jpg|Big pipe hydrant
File:Fireman uses hydrant.jpg|Fireman uses hydrant
</gallery>