The most common complaints received by water suppliers are from customers about the colour of their drinking water. These complaints have financial, public relations and Regulatory (including possible prosecution) implications. If water suppliers know the causes of these complaints, then pro-active action can remedy the problem and the costly implications of receiving complaints avoided.
- Obtained data on the physical characteristics of particulate material in distribution systems that give rise to discolouration complaints
- Identifiedconditions where risk of particulate accumulation is high and hence where discolouration occurs at customers' taps
- Defined improved, risk-based, maintenance strategies to reduce accumulation, and improved operational guidance to minimise disruption.
If operators can predict where particulate material will deposit and collect they can better target remedial and maintenance activity such as cleaning or flushing, and avoid actions likely to disturb such accumulations. The risk of complaints will decrease and the distribution network can be operated with greater confidence.