Fire hydrant flushing improves water clarity, appearance and quality by clearing settled iron and other minerals from the water mains (distribution pipes). This process also allows the fire hydrants to be physically operated (exercised) and inspected for maintenance needs.
Residents may experience periodic interruptions in water supply and may notice a discoloration of water due to the unsettling of sediment within the water mains during the flushing process. This discoloration is not harmful for consumption, but may affect the washing of clothes, particularly whites. This discoloration can be alleviated by leaving a tap run for a short period time until the water clears.