Waste Water Engineering
The sewers

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

ANSWER DOWNLOAD EXAMIANS APP

Waste Water Engineering
The clarigesters are

Rectangular septic tanks
Circular Imhoff double storey tanks without bottom hoppers
Circular Imhoff double tanks with bottom hoppers
Circular septic tanks

ANSWER DOWNLOAD EXAMIANS APP