Hydrant Flushing to Begin on Monday

Employees of the Marion Water Department plan to begin flushing the water system beginning Monday, April 13, 2026, and will continue through mid-May, if necessary. Flushing typically begins around 8 a.m. and may continue through 2 a.m.

To provide residents with a look at the progress, a GIS map shows all 2,033 hydrants within the City and the flushing/inspection status of each hydrant. The map can be found at

Flushing hydrants is an important preventive maintenance activity that verifies proper operation of the City's fire hydrants and ensures adequate water flow will be available if the need for firefighting arises. Flushing also removes sediment that naturally accumulates in water mains.

During hydrant flushing, Marion residents may temporarily experience reduced water pressure or discolored water. While the water is safe to use and consume, the Water Department recommends postponing laundry, as the sediment may cause rust-colored stains. To prevent build-up within water heaters, avoid using hot water until the cold water tap runs clear.

Questions may be directed to the Marion Water Department office at 319-743-6310 option #2.