What causes discolouration?
The usual cause of discolouration is the disturbance of deposits present in the water mains. This can happen when there is some upset to the distribution network, such as a change in the direction or speed of flow of the water. Changes can occur due to something like a burst on a water main, the opening or closing of valves, excessive customer demand on hot sunny days or the sudden use of a lot of water for fire fighting. Discolouration may also be caused by the condition of the pipework connecting your house to the water main, or the condition of the internal plumbing within your house. The discolouration is likely to appear as ‘white water’ or ‘brown water’.
