Sectorising is the process of splitting a large water reticulation system into smaller zones which can be individually monitored to help in the identification of water losses and other water related problems. The process of sectorising is well known as a critical element of any water loss reduction programme and has long been regarded as the starting point of any comprehensive water demand management strategy.
Tag: Physical / real losses
Sanflow
The SANFLOW program represents the first of several programs that are being developed through the WRC in order to assist water suppliers to manage and reduce their levels of unaccounted-for water.
The State of Water Metering in South Africa
High levels of Non-Revenue Water (NRW) are a major challenge for municipalities and utilities worldwide
Aqualite Water balance software
AQUALITE is the first of a new generation of models designed to assist water suppliers in managing their non-revenue water. It is effectively an annual water-audit model based on the latest IWA best practice. It has been developed through close co-operation of numerous internationally recognized water loss managers from several countries and incorporates a host of features, many of which are not available in other water audit models.
Economic Model for Leakage Management for Water Suppliers in South Africa (ECONOLEAK)
The ECONOLEAK mode is aimed specifically at determining when a water supplier should invest in active leakage control for a specific zone metered area.
Assessing Non-Revenue Water and its Components: A Practical Approach
IWA Task Forces recently produced an international ‘best practice’ standard approach for Water Balance calculations, with definitions of all terms involved, as the essential first step in practical management of water losses.
Aqualite Water Balance User Guide
AquaLite has been designed to provide a pragmatic and straight-forward approach to a relatively complex issue and its design is based on the experience of many specialists dealing with such issues on a daily basis in many parts of the world.
Introduction to Operation and Maintenance of Water Distribution Systems
A water distribution system acts as a conduit to reliably transport adequate quantities of safe drinking water to consumers. To achieve this, the system needs to work as intended and maintain a physical barrier between the water inside the network and the external environment.
Benchmarking of Leakage from Water Reticulation Systems in South Africa 2005
The BENCHLEAK model was developed to evaluate levels of leakage and non-revenue water in potable water distribution systems. The first study involved developing the model with a limited budget for checking the various data sets used to test the model. The main objective of the follow-on study was therefore to use the model to evaluate the levels of leakage in approximately 30 water utilities throughout South Africa.
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.