Submitted by pjenkins on Thu, 11/07/2013 - 4:38pm HideTool Concept Stage: Prototype License: This work is licensed under a Creative Commons Attribution 4.0 International License (link is external). Description: Wirtz pump, passive water pump. Paddle wheel pump on open water irrigation ditch fills elevated 500 gallon water tank which then gravity irrigates greenhouse.Add new comment HideDocumentation Video: Documentation Wiki: Detailed description of design, construction, materials here: http://vimeo.com/26307419 (link is external) Additional notes here: https://farmhack.org/content/farmhack-projects-paddlewheel-powered-pump Add new comment I like this tool up0 users have voted. I built (or modified) this tool up0 users have voted.