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The Design Of Potable Water Supply System For Institutional Setting
[A CASE STUDY OF KWARA STATE POLYTECHNIC PERMANENT SITE] -
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2.3 LAYOUT OF DISTRIBUTION SYSTEM:
There are four different systems of distribution which are used according to Garg, 1994. Depending upon their layout and direction of supply, they are classified as follows:
1. Dead End or Tree System
2. Grid iron System
3. Circular or Ring System
4. Radial System
2.3.1 Dead End or Tree System:
Figure 4 above shows the layout of this system. It is suitable for irregular developed towns or cities. In this system one main starts from require reservoir along the main road. Sub mains are connected to the main in both the directions along other roads which meet the main road. Sub mains, branches and minor distributors are connected to sub mains. They are cheap in initial cost. When the pipe breaks down or is closed for repair the whole locality beyond the point goes without water. It cannot meet the fire demand.
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