The biggest reason why a fire hydrant would be flushed is to clear out any stagnant water that may be sitting in the city’s pipes. When water is pumped through city pipelines, it is treated with chlorine to keep bacteria from thriving in it.
Hydrant flushing is the quick release of water from fire hydrants. It’s a controlled procedure that is vital to the general maintenance of the City’s water distribution system. It ensures adequate water flow is available to fire fighters, residents and businesses. It also improves water quality by clearing iron and other mineral deposits from the water mains.
Why We Flush Fire Hydrants and Water Lines
That is why we schedule routine flushing of our hydrants and water lines. We flush for a variety of reasons: Basic water system maintenance to exercise and test the hydrants; Response to calls about poor-quality water that is discolored or has a undesirable odor or taste; To refresh lines that do not get a lot of flow
Fire hydrant flushing is an important part of our annual maintenance that is usually done once or twice per year. There are two main reasons why hydrants are flushed. First, a fire hydrant is in essence a valve and to make sure they work when needed it is important to "exercise" a fire hydrant. Additionally hydrants are flushed to remove minerals deposits that may occur inside the water distribution pipes.
People Also Ask why do they flush fire hydrants
Why does the city perform hydrant flushing?
Why does the City perform hydrant flushing? Hydrant flushing is the quick release of water from fire hydrants. It’s a controlled procedure that is vital to the general maintenance of the City’s water distribution system. It ensures adequate water flow is available to fire fighters, residents and businesses.
What is the purpose of a fire hydrant?
Fire hydrants are, of course, used to fight fires, and the city needs to be sure that they will have enough water pressure and flow if the fire department were to need it. Seeing a fire hydrant spray water onto the street for hours on end may seem wasteful, but it serves some important purposes.
Is your fire hydrant spraying water all over the street?
You’ve probably seen open fire hydrants at some point spraying water all over the street. If you didn’t know exactly what was going in, you might think the hydrant is damaged and needs to be repaired or someone working for the city is wasting a lot of water.
Is it safe to drink the water after a hydrant flush?
Sometimes hydrant flushing can make the water temporarily appear rust-colored because the iron and other mineral deposits in the water mains get stirred up. There is no health hazard associated with discolored water. Water is safe to use and consume during hydrant flushing, however it may stain laundry. Does the City test the water regularly?
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Why do they flush fire hydrants? Video Answer
Reference:
https://www.usfa.fema.gov/
https://en.wikipedia.org/wiki/Fire_extinguisher