The capturing (from impervious surfaces such as roofs), storing (in containers such as barrels, tanks or ponds) and distribution of rainwater.
All catchment systems must be integrated with rainwater 'harvesting' systems (infiltrating and storing water in the ground through the use of earthworks, increased carbon content and bioregionally appropriate plant communities). At 600-gallons per 1-inch of rain per 1,000-square feet all storage systems will be quickly overwhelmed during the wet-season; however, there is a massive capacity of storage available in the ground.
Rainwater catchment is only appropriate in areas that lack a stable water resource throughout the dry season, do not have water infrastructure or do not have an annual recharge rate that exceeds the diversionary rate. From an ecological point of view, in areas that have an abundant and regenerative water resource, the money spent on a catchment system can be put to better use. For example, a 1,000-gallon catchment system will cost $2,000 in materials. One thousand gallons is only enough water for the average family's toilet flushing or for the irrigation of a 500-square foot garden for three weeks. In other words, the money spent on a catchment system that wont last very long could be better spent on insulating the house or planting 57 fruit trees.
Before you invest in a catchment system it is important to understand the economic and ecological factors involved. We can help you decide if a catchment system is right for you and if so what type of system.
Our systems are passive and integrated. First-flush mechanisms ensure clean water is being stored, back-flow prevention protects your structure and system overflow connects the valuable resource to areas of groundwater recharge.
We offer hands-on experiences in the design, implementation and use of rainwater systems.