*10.2.3.2 Conveyance*

There are different conveyances for different surfaces. Gutters or downpipe acts as conveyor for rooftops. Channels/pipes are used to carry water for plots. Storm water drains in layouts, campuses, and large residences convey runoff from various land use catchments (Eg: parks, roads, other paved areas, gardens and excess rooftop runoffs). As a result, storm water drains are an important conveyance system for recharge (**Figure 10**).

#### *10.2.3.3 Filtration*

Filtration is a process to remove the dirt or residual. In this method, soil act as filtration medium.
