Discolored water results when water traveling through the water mains reaches high enough velocities to stir the sediment lying in the bottom of the water mains. Water main breaks, fire fighting activities, and extremely high system demand are typical causes of discolored water. There are no health risks associated with this type of problem, as the particulate matter causing the discoloration is are not harmful. If you experience this problem, the easiest way to eliminate the discolored water from your system is to run as many cold water faucets, including bath tubs, sinks, and outside spigots, as possible at the same time. This will create a high enough flow rate from the water main to your home to clear out any sediment which may have found its way into your service line. If the problem does not clear up within a few minutes, it is possible that the sediment in the water main has not settled out yet. In this case, wait an hour or so and try it again.