Water system flushing occurs twice a year, during the spring and fall. Notices are placed in local newspapers, Horsham Township local news channels, Horsham Township and HWSA's websites and on social media. Non-routine flushing is performed on an as needed basis and advertised whenever possible. Flushing is typically performed between the hours of 11PM and 5AM but can also be performed outside of those hours if necessary. Public water customers in and around the area being flushed may experience temporary discoloration of water which normally dissipates over a period of several hours. Residents are asked to refrain from using water as much as possible while the flushing in ongoing.