Drainage Systems

The three drainage systems that are used in practice,

Combined System – It is a system in which both foul water as well as surface water are conveyed by the same sewers and drains.

Separate System – It is that system in which the foul water and surface water are conveyed by separate sewers and drains.

Partially Separate System – In this system, a part of surface water is conveyed separately while a part of this is conveyed along with foul water through the foul sewers and drains.