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Does UDF waste water?
UDF is preventative care. The amount and cost of water used during UDF is a fraction of the cost of repairing lines and pipes from lack of maintenance. In fact, a UDF program relies more on water velocity than quantity, using up to 40 percent less water than other conventional flushing methods
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Unidirectional Flushing Program
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1.
What is UDF?
UDF is a process by which water is forced through a water pipe at a velocity high enough to remove material build-up from within the pipe. The water used during the UDF process is discharged through a fire hydrant. Material removed in this process is harmless and requires no special treatment. UDF consists of isolating a particular pipe section or loop (typically through closing appropriate valves) and exercising the hydrants in an organized, sequential manner. Because the process isolates small sections of the water distribution system at a time, the UDF program will take 6-7 months to complete.
2.
Why is UDF Important?
During normal demand conditions water typically moves through the underground pipes at a low velocity. This slow movement allows mineral deposits to accumulate in pipes over time. Mineral buildup can restrict water flow in the pipes, accelerate corrosion rates, and contribute to unfavorable water aesthetics (e.g. taste, odor, & color.) Periodic flushing removes the mineral deposits and is critical to maintaining water quality and the water system. The UDF procedures help ensure that pipe sections are completely cleaned and flushed while avoiding simply moving debris from one part of the system to another.
3.
Does UDF waste water?
UDF is preventative care. The amount and cost of water used during UDF is a fraction of the cost of repairing lines and pipes from lack of maintenance. In fact, a UDF program relies more on water velocity than quantity, using up to 40 percent less water than other conventional flushing methods
4.
How will I be affected?
You will probably not even be aware that UDF is occurring in your neighborhood. Flushing crews will be working between 7:30 am – 3:00 pm, Monday through Friday. When UDF is occurring, you may notice water being discharged from a fire hydrant. Select hydrants will be opened for water main flushing. While the hydrants are open, customers on that block may experience discolored water, a small drop in water pressure, or a temporary interruption of service. If you have no water pressure or service has not been returned within 30 minutes, please notify the City at 816.439.4763 or 816.439.4545 as soon as possible. If you need assistance after 3:30 pm notify Utilities Maintenance Division at 816.985.5197.
5.
What if my water is discolored?
Should a discoloration of the water appear, do not be alarmed this is normal. It is recommended you do not use the water or do laundry for about two hours. After two hours, run your faucets for a few minutes to make sure the water is clear and then resume normal water use. If water does not clear within a few hours, please notify the City at 816.439.4763 or 816.439.4545.
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