Why innovations in the WASH sector rarely scale up?

Lessons for government, the private sector, NGOs and donors. For years, the WASH sector has been mesmerised by clever ideas that have the potential to transform the sector: from a solar-powered device that can harvest water from the air; smart water pumps; water filters which purify water and reduce the number of lives lost to waterborne diseases; to eWATERpay which can be […]