Design for water is the bones of any Permaculture system and often times the way the layout works with water determines the basic shape of things. The Permaculture principles, which tell us to Observe and Interact and Design from Patterns to Details, need to be followed and developed in order for us to design for water on our sites. Termperate, Tropical, and Dryland climates each pose unique opportunities while designing for water.

Oregon State University Free Permaculture Course (http://open.oregonstate.edu/courses/permaculture/)