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The original item was published from 10/2/2018 10:43:00 AM to 10/6/2018 12:00:14 AM.

News Flash

Rochester News

Posted on: September 24, 2018

[ARCHIVED] Hydrant Flushing Program

Fire Hydrant

Well side flushing will take place Monday, October 1st -Thursday, October 4th 8pm-11pm
GLWA side flushing will take place Monday, October 1st -Thursday, October 4th during normal working hours

What is the Water Main (Hydrant) Flushing Program?
 To improve water quality and minimize discoloration, the City of Rochester routinely flushes strategic hydrants throughout both the west and east distribution systems. The procedure involves the systematic opening and closing of hydrants, one section of main at a time, to force the water through the pipes at high velocity, removing accumulated mineral sediment until the water is clear. The operation may take from a few minutes to over an hour.

How will flushing affect water service?
 When flushing crews are working close to your residence or business, you may experience periods of very low pressure. 

Flushing operations may also lead to discolored water, which can be drawn into homes and businesses if the water is being used during or immediately following the flushing.  Such events should affect customers for a few hours at most.  The discoloration is caused by iron (red color) or manganese (black color) particles being dislodged from the water main. While iron and manganese pose no health issues, they can stain porcelain and laundry.  If discoloration occurs, open the cold tap nearest the water meter—usually a basement sink—to full flow until the water runs clear. In some situations this may take 5 to 10 minutes.  It is also advised that you make sure your water is clear before doing laundry or other projects for which discolored water could cause problems.

What are the benefits of hydrant flushing?

 • Improve water quality and remove mineral deposits from water mains
 • Ensure that hydrants are functioning properly for fire protection
 • Helps verify sufficient flow for fire protection
 • Draws in freshly treated water to low flow areas




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