What's the best way to work with children in humanitarian WASH (water, sanitation and hygiene promotion) programmes? How do you design and build - and maintain - a biogas generator? How do you clean a hand dug well? Or repair a solar-powered borehole?
Answers to all of these questions and more can be found here. Oxfam's WASH Technical Briefing Notes document our experience and learning from providing WASH programmes in over 50 countries worldwide.