The Hour-Day Factor is simply a factor that can be applied to a reduction (or increase) in the pressure dependent flow occurring at the hour of Minimum Night Flow to provide an indication of the total daily saving (or increase) in pressure dependent flow that can be expected over the whole 24-hour period.
Category: Advisory packages, guidelines, and tools
Evaluation Toolkit
Gauteng has limited natural water resources and therefore relies on a very large and highly engineered system called the Integrated Vaal River System (IVRS) which draws water from five different river basins across six provinces.
The State of Water Metering in South Africa
High levels of Non-Revenue Water (NRW) are a major challenge for municipalities and utilities worldwide
Optimal meter selection
The accuracy curve and envelope of a new water meter is governed by the type of water meter and relevant standards. Water demand patterns vary with time, period, seasons, consumers and combinations of these factors.
National Pricing Strategy for water use Charges
This strategy seeks to facilitate reform in the sector as well to provide transparency and predictability to water users on how water will be priced.
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.
Guidelines for Pressure Management
This document includes the results from eight pressure management pilot projects undertaken in South Africa, using the PRESMAC Pressure Management Program which has been developed for the South African Water Research Commission.
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 Integrated Water Meter Management
Water metering is particularly important for municipalities since it forms the basis for much of their income through the sale of water to their consumers.
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.