Grid Iron Water Distribution System ( Interlaced System ) : Suitability, Advantages & Disadvantages

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A grid iron water distribution system is also referred to as a reticulation or interlaced system.

The entire system consists of one main pipe which runs through the center and consists of branches and laterals which run in a grid pattern.

Since the mains, branches, and laterals are interconnected; dead ends are laminated and water reaches at different locations through more than one route.

By closing cut-off valves of other areas’ pipes, water can be diverted to the affected area at the time of the fire.

There is a very fewer chance of recontamination because there are no dead ends.

Grid Iron Water Distribution System

The design of this system is complicated because pipelines get water from different directions.

The size of pipes is larger and more sluice valves are required.


  a. Suitability   

It is most applicable for a planned city where roads and streets are provided in well-planned rectangular and squares grid patterns ( i.e. Roads are at the right angle to each other. )


  b. Advantages of Grid Iron Water Distribution System  

a. The absence of a dead-end reduces the chances of pollution due to stagnation.

b. During repair and maintenance work; the small region is only affected.

c. Availability of enough water at street fire hydrants.


  c. Disadvantages of Grid Iron Water Distribution System  

a. Requirement of a huge number of cut-off valves.

b. Requirement of longer pipes with a larger diameter.

c. Difficult to determine discharge, pressure, and velocities in the pipelines.

d. Less economical.


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