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Re: Oak Leaves - box filter



George writes:

> If you put in a box filter to remove the dark color, arn't you just
>  removing the tannins that you worked so hard to get?   George
>  
The tannins take on cations like CA and Mg in order to allow the release of 
the H+ ions that increase acidity.  So when the carbon filter takes the 
tannins out, it takes out the other stuff, not the H+ ions.

Bob Dixon


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