Water Project Sustainability

One of the major water scarcity problem facing Nigeria as a country to day is the water project sustainability. Our Government is really trying to make safe drinking water available to the masses but they never think of how to sustain the facilities with respect to water. So water provission project kept on repeated itself every year and a lot of money is being wasted on it as most of these project do fails after 1 or 2 year.

Can you share your country approach to solve this kind of problem?