Fire Hydrant Flushing

Annual Fire Hydrant Flushing

Each summer the City of Pittsburg begins its comprehensive fire hydrant flushing program throughout the City.

There are approximately 1,236 fire hydrants in Pittsburg.  This operation serves the following purposes:

• Enhances water quality by removing sediments from inside the mainline and flushing them out through the hydrant.
• Identifies malfunctions of the hydrant and related valves.
• Helps determine weaknesses in the water distribution system.
• Identifies inadequate water volumes and pressures in the mainlines.
• Helps determine fire flows at the hydrant.

This routine maintenance is necessary to maintain the integrity of the water system and continue to deliver the highest quality water possible to customers.

How are residents affected?

During the flushing process, you may experience the following:

• A temporary drop in the water pressure to your home or business.
• Water discoloration (rusty brown or cloudy water), especially when work is being done in your immediate neighborhood.

Discolored water is not harmful, and these conditions, along with water pressure, will subside in a few hours after the flushing is completed.

What To Do During Hydrant Flushing:

1. If possible, avoid using water while the hydrant flushing is taking place. By not taking water from the tap or running appliances that use water (dishwashers and washing machines), you can prevent discolored water from entering your household plumbing altogether.
2. Don’t do laundry while hydrant flushing is taking place. The discolored water can sometimes stain fabrics. Wait until water runs clear at the tap before using your washing machine, and wash a load of dark clothes first.
3. If you encounter discolored water following hydrant flushing, run the cold water taps throughout your home (bathroom sinks and tubs, kitchen faucets, etc.) for 5 to 10 minutes or until the water clears. This allows discolored water to work its way out of your household plumbing.
4. If, after hydrant flushing, your water pressure or volume seems low, clean faucet screens to remove silt and mineral sediment that could be obstructing water flow.

If you are still experiencing problems with water quality or pressure after a flushing event, please contact the City of Pittsburg Public Utilities Department.