Managers Non-Revenue Water Africa Manual

This handbook serves to assist senior managers of water utilities in better understanding the definition, causes, and practical solutions to address NRW, a key performance indicator for a utility’s operations. It provides the information that managers need when discussing NRW-related issues with their staff.

Apparent Water Losses Related to Municipal Metering in SA

Apparent losses consist of water that is delivered to consumers but look like losses to a municipality. It consists of two main components: water meter under-registration and unauthorized consumption. Meter reading and data errors may also contribute to apparent losses.

A Guide to the Control of Water Losses in Pipe Networks

Water lost from a water supply distribution network can account for a considerable percentage of the total volume of water supplied. As this loss is paid for by consumers, a reduction in the amount of water lost could lead to a decrease in water tariffs, smaller pipe sizes and reduced water purification capacity and a delay in the need for increased storage.