Things You'll Need
Instructions
Capturing Rainwater
Select a location in which a downward slope leads toward a sharp dropoff; e.g., roofs of low-lying buildings, eroded hillsides, etc.
Dig a furrow into the slope. In the case of existing architecture, consider manufacturing a gutter with a durable material such as PVC pipe. The furrow should be wide and deep enough that falling rain is directed downward within the confines of the furrow.
Place a barrel beneath the angled surface so rainwater flows in from the furrow or gutter.