The Law of Unintended Consequences

Water Loss Research and Analysis Pressure Management

Target Audience

This course is suitable for someone new to the subject of Non-Revenue Water, or someone who knows a little about the subject, but wants to improve the foundations of their understanding.


The Law of Unintended Consequences course offers valuable insights into the intricate dynamics of pressure management, shedding light on the often-overlooked additional benefits it can bring. Participants will delve into the pivotal aspects of leakage occurrence, gaining a profound understanding of its primary locations and underlying causes. Moreover, the course critically examines the potential ramifications stemming from the misuse of performance indicators, illustrating how their inappropriate application can lead to unforeseen and adverse outcomes. By exploring these multifaceted topics, participants will enhance their ability to navigate complex systems and make informed decisions to mitigate unintended consequences effectively.

Learning Objectives

  • Understand the conservation benefits, Water Utility benefits and Customer benefits associated with Pressure Management
  • Understand how Active Leakage Control repair efficiency can be improved by combining with Pressure Management
  • Using worked examples, recognise how run time influences the annual volume of real losses across mains and services
  • Understand how Component Analysis can show where most real losses occur
  • Recognise the range of KPIs which are appropriate for use for target setting and performance tracking for an individual system as well as those appropriate for technical performance comparisons
  • Understand why using Leakage as a percentage of System Input Volume is a Zero-Sum performance indicator which is not fit for purpose

A 10% discount is available for IWA members