Amman Citadel can be found in the heart of Jordan’s capital city Amman. It has been continuously occupied since Neolithic times. After conquest by the Greeks it was known as Philadelphia. The Romans left their mark too – the columns that stand on the site belong to the Temple of Hercules, and the amphitheatre carved into the foothills opposite the citadel can seat 6,000.
Like many countries with long histories, water infrastructure is ageing. Estimates suggest that the amount of water lost every year could satisfy the basic needs of 2.6 million people, or more than a third of Jordan's current population.
Jordan is a poor country, lacking the oil reserves of many of its neighbours, with high levels of public debt. It has record levels of unemployment and a sluggish growth rate. It finds itself reliant on foreign aid.
Never have smarter networks been more needed. They provide a cost-effective option that makes the most of existing infrastructure, biding time at least until more fundamental solutions can be afforded.