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Re: Aquatic Plants Digest V3 #546

>I was talkin' about sodium bentonite.  I have a little "food grade" bentonite
>that is used as a clarifier for homebrew beer/wine.  It is kind of expensive,
>but could be used as a test (a little goes a long way).  Clumping cat litter
>also contains sodium bentonite, along with who-knows-what.  Drilling mud is
>probably just about right.
You can get (sodium) bentonite at your local ceramic supply (clay,
supplies, etc.) for a buck a pound or get a whole 50 lb bag for $10.  It's
used as an additive to clay to make it more plastic and to glazes to
improve adhesion.

k5vkq at ix_netcom.com