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Rainwater Harvesting System Design Basics

Posted by raindrop on August 20, 2013

Rainwater Harvesting System Design Basics

by Timothy C. Hessler, CSM

Water cannot be created or destroyed. The same amount of water is on Earth today as when dinosaurs walked the planet. Man and nature can only alter the physical state of water, pollute it, or clean it up.
The bulk of Earth’s water is saltwater, approximately 97 percent, and unusable for human consumption without costly desalination treatment. Of the less than 3 percent remaining, two-thirds of this freshwater is locked up in ice caps and glaciers. The majority of the balance is coursing beneath the surface as groundwater, soil moisture, or in aquifers. That leaves 0.3 percent of the planet’s freshwater, or approximately 0.007 percent of all water on Earth, accessible for human needs. This water has to be shared for use in irrigation, household and municipal water use, manufacturing, and industrial applications. Obviously, water is a precious commodity that should be conserved and valued. MORE...

Plumbing Engineer - Features: November 2012: Feature Story

Rainwater Harvesting System Design Basics


by Timothy C. Hessler, CSM


Water cannot be created or destroyed. The same amount of water is on Earth today as when dinosaurs walked the planet. Man and nature can only alter the physical state of water, pollute it, or clean it up.

The bulk of Earth’s water is saltwater, approximately 97 percent, and unusable for human consumption without costly desalination treatment. Of the less than 3 percent remaining, two-thirds of this freshwater is locked up in ice caps and glaciers. The majority of the balance is coursing beneath the surface as groundwater, soil moisture, or in aquifers. That leaves 0.3 percent of the planet’s freshwater, or approximately 0.007 percent of all water on Earth, accessible for human needs. This water has to be shared for use in irrigation, household and municipal water use, manufacturing, and industrial applications. Obviously, water is a precious commodity that should be conserved and valued.

- See more at: http://plumbingengineer.com/nov_12/rainwater_feature.php#sthash.CbNTW7g4.dpuf