Rainwater Harvesting Basics
Rainwater harvesting systems are becoming increasingly popular and being applied in urban settings around the world to reduce water demand. Harvested rain can be used outdoors for irrigation, and indoors for toilets, laundry and if treated, as drinking water.
Simple harvesting systems consist of rain barrels that collect roof runoff for simple outdoor irrigation such as watering your garden. More complex pumped systems involve large cisterns that store filtered and treated water collected from the roof. This water is then plumbed into the house, either as a replacement or supplement to the standard municipal water supply.