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Paul calls up about a third of his instructors (Alan Booker, Chris McClellan aka Uncle Mud, Opalyn Rose, Samantha Lewis, and Beau Davidson) from last year’s Permaculture Technology Jamboree to just go over what was taught there and some on the plans for this year’s PTJ.

Quick tidbit: Paul hopes to turn last year’s PTJ into a movie – he has the footage and just needs to get it mashed properly into a movie, so expect a Kickstarter for that in the near future.  Furthermore, Paul hopes to encourage more people to sign up to this year’s PTJ by dropping the price and offering cash and discounts for video recordings of it.

Alan goes first with his work on a spring terrace (the drippy sort of spring, not the bouncy type) which are made by digging into a hill and finding a slow flow of water that can’t get any further down due to an impermeable layer and tapping into it to make a spring, then making one or more terraces above the new spring to encourage the water to soak in instead of flowing off.  

After rainfall, whatever water doesn’t immediately run off gets absorbed into the soil and slowly soaks downwards until an impermeable layer is reached, typically a clay layer or shallow bedrock. If the impermeable layer is sloped, then the water will work its way through the open spaces in the soil to flow “downhill” underground over it. Such flows are what you’re looking for. To catch the water, a perforated pipe surrounded by gravel and then wrapped in filter fabric is inserted into the hole to provide an easy path for the water to follow while keeping any sand or soil out.

The terraces Sepp Holzer creates aren’t the sort commonly pictured in Asia that hold completely level pools of water, but instead have deliberate wobbles to both create areas that are wetter or drier, and to push the water towards the back of the terrace to encourage it to soak back into the soil instead of making a stream over the edge.

Relevant Threads

podcast 432 - Zach Weiss - Spring Terrace - Part1 (Part 2)

Sepp Holzer Style Spring Terrace - PTJ Artifact!

Build a Sepp Holzer Style Spring Terrace - earthworks.iron.springterrace PEP BB

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This podcast was made possible thanks to:

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