Talk:Water supply network

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Leakage on a Water Supply System

It is a fact that all water supply systems leak. One challenge for water supply organisations is quantifying this. This is done for two primary reasons - firstly to locate and fix leakage, and secondly they will probably have a requirement to report their "Water Balance".

Top Down Leakage refers to one of the simple methods of calculation:

Water into supply - Known or Estimated Consumption = Leakage

Known or Estimated consumption is normally split into a number of components such as Billed Household Consumption, Billed Non Household Consumption, Unbilled Water Taken legally/illegally and Water for Operational Use.

Other approaches for quantifying leakage include: the Integrated Flow Method (the Bottom Up method), the Bursts and Background Estimate (BABE) and the Infrastructure Leakage Index (ILI).