Each year starting in mid-October, the Meridian Township Department of Public Works (DPW) performs hydrant flushing and winterization as routine maintenance. The DPW maintains approximately 2,200 hydrants throughout the Township.
The process of periodically flushing fire hydrants is an important preventive maintenance activity. This allows DPW employees to test hydrants for flow and operations. Should any repairs be required it is noted and the repairs are scheduled before cold weather sets in. Flushing, although it may appear to waste water, provides the DPW the means to clean and refresh the entire water distribution system.
By discharging a large volume of water through a fire hydrant, water flow within the pipeline is increased. This increased flow actually scours the inside of the pipeline, removing and then transporting silt and mineral deposits out of the water system. During the flushing process, it is not uncommon for a yellow, brown or reddish tint to appear in the water. Harmless mineral deposits settle in the water mains and flushing the fire hydrants stirs the deposits sometimes causing discoloration of the water.