The PIPES program calculates flows and pressures in a pressure pipe network. Typical uses of PIPES include watermain design for subdivisions, fire mains, irrigation systems, cooling water systems, pipework and plumbing systems in buildings.

The PIPES++ program is an extended version of the PIPES program and is intended for analysis of larger town water supply systems where the user is interested in monitoring reservoir levels, pump operating times etc over an extended time period (eg 24 hours) with system demands varying with time. It also includes water quality simulation which can be used to predict how chlorine and fluoride concentrations vary with time throughout the network.