The Pressure Manager’s role at Esval is to ensure that minimum viable pressure is achieved across the entire network. The minimum level ensures lowest level of leakage, lowest number of bursts from pressure and transients, and longest asset life. The viable bit is about ensuring that customers get an adequate level of pressure. It seems to provide a nice counterbalance to the traditional focus on finding and fixing leaks.
Of course, as the regulatory requirement for leakage reduction increases, you may be thinking that a Pressure Manager is needed just to keep everyone calm!