WASH Step drawdown pumping test

This video provides an overview of a step drawdown pumping test. For more information on WASH at UNHCR visit wash.unhcr.org If you are interested in helping UNHCR to ensure that no refugees are left behind visit: donate.unhcr.org --- Keep up to date with our latest videos:    / unhcr   -- UNHCR, the UN refugee agency, works to protect and assist those fleeing war and persecution. Since 1950, we have helped tens of millions of people find safety and rebuild their lives. With your support, we can restore hope for many more. Read more at http://UNHCR.org Support our work with refugees now by subscribing to the above channel, liking this video and sharing it with your friends and contacts. Thanks so much for your help.