The system works through a logger attached to the water meter which measures the amount of water flowing through the meter every 15 minutes.

The graph shows the data displayed on the monitoring system from a primary school. The peaks represent consumption during the school day and the flat lines in between correspond to when the school is closed. The data shows that 132 litres of water per hour are still flowing through the meter overnight and at the weekend, indicating sizeable losses. In this case, 94% of water costs could be attributed to leakage despite no visible excess water above ground.

Burst pipes were a very regular occurrence during the frosts of last winter and many clients benefited from an immediate alert from Demeter. The on line system is able to confirm and quantify the level of losses which enables the customer to take prompt remedial action and maximise the benefits of having this information available.