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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.
Regards,
Onis
k5vkq at ix_netcom.com