Unsafe water and lack of sanitation are major global problems, contributing to over 1.5 million child deaths from diarrhea each year. Household water treatment (HWT) options like sodium hypochlorite, Aquatabs, and PUR can provide low-cost solutions, treating water for a family of 6 for less than a penny per day. Social marketing approaches that combine communications and product access have helped programs in over 30 countries treat over 60 billion liters of water, improving health behaviors and reducing diarrhea prevalence in places like Madagascar. Lessons show that focusing on key behavior drivers, partnerships, and multiple communication channels can enable HWT to effectively and affordably scale up safe water access.

2. Why Worry About Water, Sanitation, and Hygiene? Unsafe Water: More than 884 million people worldwide lack access to improved water sources No Sanitation: 2.5 billion don’t have access to a latrine or toilet So What? : Every 15 seconds child dies from dehydration due to diarrhea.

9. Social • marketing (so shel • mar kit ing) n. 1. The application of marketing concepts and techniques to influence behavior among a target audi-ence in order to benefit themselves and society.

10. Communications + Product = Healthy Behavior

12. Liters of water treated since PSI Safe Water programs began: over 60 billion

13. A Case Study: Enabling People in Madagascar to treat their drinking water

14. Applying Evidence to Improve HWT Uptake: Madagascar Sur’Eau use: 2004 and 2006

16. Hotely Sûr’e Sekoly Sûr’e Community-Based Distribution Agents

18. Madagascar Sur’Eau use: 2004, 2006, 2008

22. Conclusion: These interventions are… Effective: Offer measurable reduction in diarrheal disease prevalence Offer measurable increase in good hygiene practices and beliefs Affordable From a penny a day to $0.20 a day for a family of 6 Scalable: Allow PSI to ensure that millions of people can drink a glass of clean, safe water every day.