The Bethel Water Department will begin its 2018 hydrant flushing program today. It's expected to take four weeks to complete. Hydrant flushing is meant to improve water quality and fire protection throughout the system. Hydrant flushing may cause temporary discolored water or pressure fluctuations. Customers are advised to check the color of their water before using and avoid washing clothes or using their hot water during periods of temporary discolored water. The list of streets to be flushed will be updated by Bethel officials weekly. The first week hydrant flushing is taking place in the Maple Avenue, Plumtrees Road, Seeley Street and Greenwood Avenue area.