The city of Greenville began its fire hydrant flushing project this week.
Public Works Superintendent Bill Grider told WGEL the reason this is done.
Flushing began at the water plant and goes to the water towers and outwards from the towers, to the end of the water mains. Grider said users may notice some discoloration in the water which could continue for a few hours, however, the water can still be used.
The city has a total of 426 fire hydrants to flush.