While achieving water security remains an elusive goal across large swathes of sub-Saharan Africa, the benefits of investing in water, sanitation and hygiene to achieve basic water security and alleviate poverty are clear. Households benefit through a range of health, educational, nutritional and broader livelihood impacts; local, regional and national economies benefit from greater economic activity, spending and investment; and over the longer-term, households and economies benefit through greater resilience to climate change and shocks. So why are governments and their development partners...