Active Rain Water Harvesting, Catchment Systems, Passive Stormwater Collection

About Water Harvesting

Renewable Water Sources

Water Harvesting Methods

Active Harvesting

Passive Harvesting

Applications

Cooling Towers & Harvesting

Stormwater Harvesting

Selecting a System

Storage Options for Harvesting

Water Harvesting Calculator

LEED Certification

Resources

FAQs

APPROACHES TO WATER HARVESTING

The many methods of harvesting rainwater or greywater can be categorized into two main groups - each with its own advantages and disadvantages - Active & Passive harvesting.

Passive Harvesting:This "ultra green" approach captures and processes rainwater naturally through biological plantings on green roofs and through vegetative swales in parking areas.

Active Harvesting:Active harvesting involves mechanical means of collecting, filtering, storing and pumping harvested waters. These systems can be quite sophisticated and can provide sustained levels of water for flushing toilets and watering landscaping.

Each approach has its own set of advantages and disadvantages, costs and implications. At Water Harvesting Solutions, we often recommend a combination of approaches to maximize the utility and effectiveness of harvesting. For more information, see our pages on Selecting a System and Our Services.