Module 4 - Construction of a gravity fed system
Module 4 - Construction of a gravity fed system
Module 4 - Construction of a gravity fed system
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Fig.25: Crossing a shallow river.<br />
- Crossing a road<br />
The pipe must be buried at a minimum depth <strong>of</strong> 1m.<br />
Use only GI pipe, a GI sleeve or concrete culvert.<br />
- Marking blocks<br />
To mark the pipe laying, concrete or masonry marking blocks must be installed every 100m,<br />
especially at the joints level, and at each sensitive point (junctions, change <strong>of</strong> direction, etc).<br />
Ideally, you must indicate on the blocks the pipe type and diameter, the direction <strong>of</strong> the flow<br />
direction and a block registration number.<br />
Fig.26: Marking block.<br />
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