Comment: Yeah, we plan something similar

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Yeah, we plan something similar

We have an unusual resource here - red lava rock that has been rolled down the river. We are going to see how much of it we can actually pick off a few gravel bars and try them. They are still nice and porous, but the outer edges are smoothed off.
We also have excellent clay on site, we may eventually try making our own "expanded clay."

This is the article that got my posting privileges revoked:
http://bklim.newsvine.com/_news/2013/05/12/18212165-dr-stan-...