Residents in Deakin and Yarralumla have been warned to expect water discolouration on Tuesday.
Icon Water said crews would be carrying out works that could stir up sediment within the network, causing temporary water discolouration.
Residents are advised not to drink the water if it appears, tastes or smells unpleasant.
Anyone whose water is discoloured should not use their washing machines or dishwashers, because the water may stain clothes and clog filters.
Any discolouration should clear through the day on Tuesday, but if it continues into Wednesday, residents are asked to contact Icon Water by calling 6248 3111 and selecting option 1.