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2. Birdsill Holly - Wikipedia

   en.wikipedia.org/wiki/Birdsill_Holly

   1869 Birdsill Holly fire-hydrant. Birdsill Holly Jr. (November 8, 1820 – April 27, 1894) was an American mechanical engineer and inventor of water hydraulics devices. He is known for inventing mechanical devices that improved city water systems and patented an improved fire hydrant that is similar to those used currently for firefighting.

3. Frederick Graff - Wikipedia

   en.wikipedia.org/wiki/Frederick_Graff

   Frederick Graff (27 August 1775 – 13 April 1847) was an American hydraulic engineer who designed and built the Fairmount Water Works in Philadelphia, Pennsylvania, and unofficially invented the fire hydrant.

4. Hydrant - Wikipedia

   en.wikipedia.org/wiki/Hydrant

   A hydrant is an outlet from a fluid main often consisting of an upright pipe with a valve attached, from which fluid (e.g. water or fuel) can be tapped. Depending on the fluid involved, the term may refer to: Fire hydrant for firefighting water supply; Flushing hydrant for cleaning water mains

5. Thieves are stealing L.A. County fire hydrants by the ... - AOL

   www.aol.com/news/hydrants-vanish-imperiling-l...

   Thieves have stolen about 300 fire hydrants in parts of Los Angeles County, according to the Golden State Water Co. The hydrants are sold for scrap metal.

6. AOL Mail

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   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

7. 'Fighting the climate crisis is patriotic!' Maxwell Frost ...

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8. Water flow test - Wikipedia

   en.wikipedia.org/wiki/Water_flow_test

   One hydrant is known as the residual hydrant or test hydrant and is located on or near the water main where a new water connection is desired. From this test hydrant, a static pressure and a residual pressure will be measured. The other hydrant, known as the flow hydrant, is usually the nearest hydrant away from the test hydrant.

9. San Francisco Fire Department Auxiliary Water Supply System

   en.wikipedia.org/wiki/San_Francisco_Fire...

   Cistern in the Mission District, San Francisco, California. The Auxiliary Water Supply System (AWSS, though often referred to on manhole covers and hydrants as HPFS for High Pressure Fire System) is a high pressure water supply network built for the city of San Francisco in response to the failure of the existing emergency water system during the 1906 earthquake.