Waste Water Engineering
Hume steel pipes are

Steel pipes
Steel shell coated from inside with cement mortar
Both B and C
Steel shell coated from outside with cement mortar

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Waste Water Engineering
The sewers

All listed here
Must be laid at least 2 to 3 m deep to collect /water from the basements
Must flow under gravity ½ to ¾ full
Must be of adequate size to avoid over flow

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Waste Water Engineering
The stone ware sewers

Are used for carrying sewage and drainage from houses
All listed here
After casting are dried and burnt at temperature 150°C, 700°C and 1200°C
Are manufactured from clays and shale

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