WHAT is rainwater harvesting?

Even in arid and semi-arid regions, it rains from time to time. Although rain may occur infrequently, desert storms can drop a great deal of water in a short time. If you have large amounts of impermeable surfaces on your lot, such as bare ground or pavement, or if your roof has gutters and downspouts, you may be able to capture some of this rain and direct it to your landscaping or store it for use during drier periods. Rainwater harvesting can reduce your landscaping maintenance costs and provide other benefits.