Distribution System, In Water Supply
Key Functions
Carry treated water safely to all users
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Maintain adequate pressure and flow
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Ensure continuous and reliable water supply
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Preserve water quality during transport
Main Components
Pipelines – Carry water to different areas
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Pumps – Boost water pressure and flow
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Storage Tanks/Reservoirs – Store water for peak demand and emergencies
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Valves – Control flow and isolate sections for maintenance
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Meters – Measure water usage
Types of Distribution Systems
1. Dead-End System
Key Features of Dead-End System
Simple and easy to design
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Low initial cost
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Easy to extend
Main Drawbacks
Poor water circulation
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Stagnation of water at dead ends
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Higher chances of contamination
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Unequal pressure at far ends
2. Grid Iron System
Key Features of Grid iron System
Good water circulation
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Uniform pressure distribution
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Less chance of stagnation
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Reliable supply during repairs (alternate paths available)
Main Drawbacks
Higher initial cost
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More valves required
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Complex design and maintenance
3. Ring (Circular) System
Key Features of Ring (Circular) System
Good water circulation
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Uniform pressure at all points
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No dead ends in the main
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Reliable supply during pipe repairs
Main Drawbacks
Higher cost than dead-end system
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More valves and fittings required
4. Radial System
Key Features of Radial System
Easy control and management of supply
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Uniform pressure in each zone
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Quick detection of leakage
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Suitable for large cities and planned areas
Main Drawbacks
High initial cost
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Complex design
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Requires skilled operation
