Because the governing mathematical equations for water distribution networks are nonlinear, many computerized methods of solution have been proposed as the "best" method of solving these equations. A comparison of some of the more popular methods indicates that little difference exists between the methods, although a slight overall edge is available with the Newton–Raphson technique. The exponential increase in computer model cost with increasing network size is demonstrated. The utility of network schematization models is documented, particularly as employed in design studies.