Water from storage tanks are directed by transport pipelines to cities, villages, consuming centers, etc. then, distribution networks are intended to carry water to consumers.   Urban distribution networks are generally composed of  large diameter main, medium diameter , small diameter minor pipes.

Hydraulic principles in design of  water distribution networks plays an important role in projects. Equilibrium in pressure and velocity of water in networks, control and online dispatching of networks, water quality controls in internal networks are also considered important.  There are different software programs used in water distribution networks that we can point out to Water-Gems application.