[Cob] Clay for clay/straw slip

[Ocean Liff-Anderson]

Depending on where you are, you can just dig a hole.  Here in  
Oregon's Willamette Valley, the subsoil is about 18-24" down, pure  
clay, almost good enough for pottery.

Some places have higher silt content, which won't do well for cob or  
clay slip.

There are 'sticky' tests and 'shake' tests - anyone on the list care  
to elaborate?



On Jun 3, 2012, at 5:22 PM, The Roots wrote:

> Just an easy question for any of you - where does one go to get  
> clay to make clay/straw slip?  We are using it for an infill for a  
> small post and beam structure.  Thank in advance,
>
> Scott
>
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