Better Water Information

Imagine a mother in rural Kenya walking miles to a community borehole, only to fill her jerrycan with water teeming with invisible pathogens. In Sub-Saharan Africa, this daily reality fuels a silent crisis: waterborne diarrheal diseases that kill hundreds of thousands of children under five every year. The solution isn’t complex infrastructure or expensive filtration—it’s a simple, low-cost dispenser placed exactly where people collect water. Evidence Action’s Dispensers for Safe Water program tackles this challenge head-on, turning a moment of collection into a life-saving intervention at a staggering cost of just $1.50 per person per year.

Technology & Methodology

The Dispensers for Safe Water program operates on a brilliantly simple principle: make safe water the default choice. The technology is a durable, community-managed chlorine dispenser installed directly at rural water points—typically boreholes, protected springs, or shallow wells. Each dispenser releases a precisely measured dose of chlorine into a user’s container as they fill it, treating the water immediately upon collection.

This “point-of-collection” approach eliminates behavioral barriers common with home-based treatments. Users don’t need to remember to buy tablets or boil water later; the treatment happens automatically, integrated into their existing routine. Evidence Action’s field teams maintain the dispensers, refilling chlorine every two to four weeks and conducting regular quality checks. The hardware is built to withstand harsh conditions—UV-resistant, tamper-proof, and requiring minimal technical skill to operate. Over 50,000 dispensers now serve millions of people across Kenya, Uganda, and Malawi, creating a scalable network that turns any water point into a safe water source.

Cost-Effectiveness & Sustainability Analysis

The program’s cost-effectiveness is nothing short of remarkable. At $1.50 per person per year, it ranks among the most efficient health interventions globally. For context, this is less than the price of a single fast-food meal to protect a child from deadly diarrhea for an entire year. The lifespan of each dispenser is approximately 5 years, meaning a one-time installation cost is amortized over half a decade of continuous protection.

GiveWell, the gold standard in charity evaluation, has consistently rated Evidence Action as a Top Charity, citing this extraordinary cost-per-life-saved ratio. The sustainability model is equally robust. Local community health promoters, often volunteers or government health workers, are trained to monitor chlorine levels and report issues. Evidence Action’s supply chain leverages bulk purchasing of sodium hypochlorite, keeping operational costs low. For Australian donors, tax-deductibility is fully supported when processed through The Life You Can Save Australia, making every dollar go further.

Regional Impact: Kenya, Uganda, Malawi

The program’s focus on Kenya, Uganda, and Malawi is no accident. These three countries represent some of the highest burdens of waterborne disease in Sub-Saharan Africa. In rural Kenya, only 60% of the population has access to basic drinking water services. In Uganda, diarrheal disease remains the second leading cause of death among children under five. Malawi faces recurring cholera outbreaks that overwhelm fragile health systems.

Evidence Action’s dispensers are strategically deployed to high-traffic water points in these regions. In Kenya’s Western and Nyanza provinces, the program covers millions of users across thousands of communities. In Uganda, dispensers are concentrated in the rural east and north, where open defecation rates remain high. Malawi’s program focuses on the central and southern regions, where groundwater contamination is most severe. The cumulative impact is staggering: an estimated 1.5 million cases of diarrhea averted annually across the three countries, with each dispenser protecting an average of 100 to 150 people.

WASH Expert Assessment

From a professional WASH perspective, the Dispensers for Safe Water program earns a Rank A rating. This assessment is based on three critical criteria: cost-effectiveness, scalability, and proven health impact. The $1.50 per person per year cost is unparalleled among water quality interventions. Chlorine treatment at the point of collection is scientifically validated to reduce diarrheal disease incidence by 30–50% in endemic settings.

The program’s primary limitation is its reliance on consistent chlorine supply chains and community buy-in. However, Evidence Action’s rigorous monitoring—including real-time data on dispenser usage and chlorine levels—mitigates these risks. The model is also highly scalable: it requires no new water infrastructure, only the adaptation of existing sources. For donors seeking a high-impact, evidence-backed intervention in Sub-Saharan Africa, this program represents the gold standard of WASH philanthropy.