It has been indicated in the literature that the looped water distribution systems
designed with Linear Programming (LP) optimisation technique are converted into tree
like structure resulting in the disappearance of the original geometry in the final design.
Looped networks are provided for system reliability, thus such a design approach will
defeat the basic purpose of looped systems provision. Such a limitation has hindered
the application of LP for the design of looped water supply networks. A methodology
for the design of a looped water distribution system has been developed such that the
loop configuration of the network is maintained by bringing all the pipes of the network
in the optimisation problem formulation using LP optimisation method.