Intermittent Water Supply: Need for action, but what action?

IWA Specialist Group on Intermittent Water Supply Intermittent Water Supply

Target Audience

Water utility managers, government organisations, technology providers, private sector consultants and academics working with or researching intermittent water supply systems


Intermittent Water Supply (IWS) is estimated to affect over a billion people globally. In areas with IWS, pipes are regularly drained and left without pressure between supply cycles, causing contamination, a consequent worsening of water quality and associated health risks.

The COVID-19 pandemic has further highlighted the importance of a reliable and 24/7 continuous water supply for public health. However, many utilities and regions of the World are challenged to achieve this.

This webinar will provide clarity on the water quality implications of IWS as well as explaining the importance of aiming for continuous 24/7 water supply, while recognising that this cannot be achieved overnight. It will provide real life examples of improving intermittent supply and transitioning towards continuous supply, with experiences taken from India and Sri Lanka.

Participants are expected to have a basic knowledge of water networks.

Learning Objectives

Following this webinar, participants will:

  • Understand the Water Quality implications of Intermittent Water Supply;
  • See why striving for continuous 24/7 supply is desirable;
  • Understand specific challenges of achieving the goal of 24/7 supply through real life experience from India and Sri Lanka.


Presentation Slides and Q&A Report

  • To view the Presentation Slides from the webinar, please click here.
  • To view the Q&A Report from the webinar, please click here.
  • To visit the Intermittent Water Supply SG page on IWA Connect, please click here.


Webinar Resources

Here are some resources recommended by the webinar panelists:


International Water Association