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Flushing Notice for Town of Dubois


DUBOIS WATER UTILITIES, INC. will be flushing and flow-testing Fire Hydrants in the Town of Dubois.

Testing will be from 8:00 a.m. until 12:00 p.m. on October 5 & 6.

You may encounter the following conditions during hydrant flushing operations:

            A temporary drop in water pressure at your residence or place of business.

            Rusty brown or cloudy water. (These conditions will subside after the flushing is completed.)

Helpful Hints to Remember:

            Do NOT wash white or light-colored laundry during the flushing operations.

After the flushing operation is completed:

            - Open the cold water faucets and let the water flow until it is clear. Turn off the faucets.

            - Open the hot water faucets and let the water flow until it is clear. Turn off the faucets.

            - When both hot and cold water are clear, the water is ready for use as normal.

            - Check the faucet screens for trapped particles.

            - Wash a load or two of dark-colored clothes first.


Why is hydrant flushing necessary?

            It 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 and helps determine locations where flow pressures may require valve inspections.

What should I do when hydrants are being flushed in my area?

            Mainly, avoid using the dishwasher, washing machine and don’t turn on the faucets (hot or cold). Wait until the operation is completed.

If you are driving in the work zone where hydrants are being flushed, please drive carefully.

Why does my water look rusty or cloudy after hydrant flushing?

            When a hydrant is opened, the water in the mainline will flow out at a high velocity. This creates a scouring action in the pipe and dislodges fine sediment particles that have accumulated in the pipe. The fine sediment mixes with the water, turning the water a cloudy or rusty brown color. This mixture is discharged out of the hydrant.  Remember, after the hydrant flushing operation, run your hot and cold faucets to let the water clear before you use it.

            If you detect a problem with rusty water, you should not wash your laundry until you have cleared the rusty water from your system. If your laundry does become discolored, you should wash it again immediately – Do not dry it first! Drying it will make the rust difficult or impossible to remove! Also, do not use chlorine bleach with rust-stained laundry, the chlorine reacts with the rust and makes the problem worse.

            Please understand that rusty or discolored water is not an unusual side effect from a hydrant flushing program, and does not indicated any sort of problem with the water system. The rust results from a reaction between the chlorine in the water, and iron in the pipes. The chlorine keeps the water safe to drink (although we don’t recommend drinking the rusty water).

            We ask for your patience and understanding during this flushing & flow testing process, which is necessary for ISO requirements which may affect your homeowner’s insurance rates; to familiarize the fire department with flow pressures and ensuring hydrants are in a good state of repair. Testing is done as quickly and efficiently as possible and will be conducted in the shortest time possible.

Dubois Water Utilities, Inc.