At Mackay Regional Council, where smart meters have been installed, around 2-3% of properties have leaks at any given time. These vary from a few litres (dribbling toilet) to over 1,000 litres per hour. The average leak lost is around 30 litres per hour. While individual leaks may not account for large volumes of water lost, there is a cumulative impact. Early detection and notification of leaks can result in significant savings.