Stormwater runoff travels along the impermeable surfaces of urbanized areas (driveways, parking lots, etc.), picking up pollutants on the way and depositing them into rivers and streams—causing riverbank erosion in the process. But with rainwater harvesting, you’re in control of how to release that water slowly back into the ground—such as redirecting the water to a garden—which means you’re protecting against surface pollution and conserving resources.
Some of the more extensive harvesting systems collect rainfall from rooftops and direct it underground after a filtration process. For smaller-scale needs, Greenrise rain barrels are one of the most popular options for rainwater harvesting.