The purpose of this presentation is to describe the application of an artificial neural network (ANN) to forecast short-term water demand, and determine if improvements in accuracy can be obtained. The paper summarizes the benefits of forecasting short-term water demand. ANN's are described and their operation detailed. As ANNs can be trained to recognize complex relationships and patterns in data they can rapidly and accurately model non-linear relationships such as those involved in short-term water demand forecasting.