By pumping high pressured water through the pipes and releasing it through fire hydrants, we rid the mains of biological and mineral deposits and get the cleanest, clearest water to you.
If you're a residential customer, you can expect temporarily cloudy water or low water pressure for the duration of the flush in your area. Your water won't be turned off and you'll continue to receive uninterrupted water service to your home.
Don't use any type of liquid lawn products that attach directly to your hose when your area is receiving UDF service. Due to the water pressure change, anything attached to your hose could be sucked into it and will end up in your water main, potentially contaminating your and your neighbours' water supply. You can learn more about this hazard on our
preventing backflow page
A drop in water pressure caused by UDF servicing can range anywhere from 15 to 60 minutes, with an average of approximately 25 minutes.
UDF servicing doesn't affect your water bill. You're only charged for water that passes through your meter and flushed water is emptied out of the distribution system well before then.
Because UDF is more effective at getting the pipes clean, we're able to flush less often. And because the pressure and velocity used in UDF is so much higher than traditional flushing, we actually run the water for a shorter duration. Our flushing schedule is also designed to ensure that we never unnecessarily flush an area.