Most fire hydrants are universally red; however, even this ubiquitous coating communicates valuable information to firefighters and water distribution personnel. Color coding depends on where each color is located on the hydrant, as the hydrant bodies and bonnets and caps each relay a separate set of information.
Why are some fire hydrants painted white?
White to show the hydrant is a Public system hydrant. Yellow for a Private hydrant connected to a public water system. Red for a special operations hydrant, meaning it’s for special purposes and situations only. Violet to suggest that the water is non-potable.
Why are fire hydrants GREY?
In some places, the tops of fire hydrants are painted different colours to let firefighters know how many gallons per minute, or GPM, a hydrant is able to deliver. The higher the GPM, the better the hydrant will be at fighting bigger fires. Blue usually marks the highest GPM, and red the lowest!
Is fire hydrant water drinkable?
Hydrant flushing is necessary to test the hydrants to make sure adequate flow and pressure is available. Flushing is also done to remove sediment from the pipes in order to maintain water clarity and quality in the distribution pipes. Your water is safe to drink.
How much PSI is in a fire hydrant?
Fire hydrants are flow-tested at a residual pressure of 20 psi; therefore, firefighters should understand the typical flow rates of fire hydrants at that pressure.
Why do they flush fire hydrants?
Why does the City perform hydrant flushing? Hydrant flushing is the quick release of water from fire hydrants. … 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.