The City of Fond du Lac Water Utility says the bi-annual citywide water main flushing starts Monday. Flushing will start in the northeast section of the city and continue in the southeast neighborhood on Tuesday, the southwest area on Wednesday morning and finish in the northwest quadrant Wednesday afternoon, October 21st. Flushing operations will take place each day between 7:00 AM and 5:00 PM. Flushing is done to improve overall water quality by ridding the water of mineral sediment by scouring and cleaning the interior walls of pipes. During hydrant flushing, residents may notice a slight discoloration of water. This is temporary and poses no health risk. However, you are asked not do laundry or use automatic ice machines until the water runs clear from your tap.