Manchester Water Works will start an estimated six-week long program to flush 500 miles of water mains on Sunday.
The work will be conducted between 10 p.m. and 6 a.m. Sunday through Thursday to minimize disruption.
The biennial program is aimed to improve water quality, according to Guy Chabot, MWW deputy director.
The work will begin starting at the Water Treatment Plant in east Manchester and work westward across the city and portions of surrounding towns that MWW serves.
Heavy commercial users will be notified by the department prior to work being done in their immediate area.
Chabot asked that residential customers with special needs, such as in-house dialysis equipment, call the department to make their locations known so that they may also be notified in advance.
Customers may experience a slight discoloration of water during the flushing program due to the increased velocity of the water in the pipelines. Customers experiencing prolonged or excessive discoloration are asked to call the department after allowing 10 to 15 minutes to flush their own service lines.
Any customers with questions regarding the program are also asked to contact the Manchester Water Works at 792-2808.