Systematic flushing complements our water testing and preventive maintenance. All are part of our commitment to deliver high-quality water to you. The benefits and impacts of main flushing include:

Water quality: Systematic flushing forces water to move through water lines and out through fire hydrants to remove rust and sediments that can collect in the water system.

Water system reliability: While flushing, we can easily find and repair malfunctioning valves or other water system components before they cause problems. Additionally, data is collected during the flushing process to confirm the condition of the water and capacity to meet fire flow.

What to expect: Several days in advance of flushing, we will notify you by placing signs in your neighborhood.

It is possible that the sediments stirred up during flushing will discolor the water. You can easily keep this water out of your home or business by not using water while flushing is under way. This includes not running appliances that use water, such as washing machines and dishwashers.

Any discolored water that gets into your home or business water lines is temporary, not harmful and should clear up quickly. If you experience discolored water or sediment in your water following flushing, remove aerators from your faucets and run cold water for a few minutes. We also recommend that your first load of laundry after flushing be dark clothes.

During the flushing process, crews will work at fire hydrants, in street intersections and at the end of cul-de-sacs. They will open and operate fire hydrants to create high water flows and velocities in the water system to scour and clean the inside of water mains.

For more information
If you have questions about systematic flushing or if your water does not clear up a short time after flushing, call Ken Lowder at (253) 502-8398 during normal business hours. At all other times, you can call the Water Emergency Control Center at (253) 502-8344.