Uses and sources of harvested rainwater
Rainwater harvesting projects come in many flavors—often involving two or more of the following uses for water collected from sources listed below:
Typical project use objectives for harvested roof or site water include:
- Landscape irrigation, fountains and runnels, landscape or interior water features, water sculpture
- Sewage Conveyance (toilet water supply), laundry facilities
- Cooling tower make-up water (evaporative systems)
- Vehicle and Fleet Washing, Automated Car washes
- Pool filling and general outdoor non-potable use
- Fire Protection
- Drinking water
—with proper water quality treatment and regulatory approval
Typical sources or catchment areas to harvest water from:
- Roof Water Run-off, including typical and vegetated (green) roof surfaces
- Site run-off, Terraces, Hardscape, playing fields and Turf Area Drains
- Foundation Underdrain and Sump Pump Effluent
- HVAC Condensate
- HVAC Blow-down effluent for chemical-free systems
- Vehicle Travel Surfaces (parking lots, driveways, etc.)
—may be limited by regulatory or technical requirements
