ca co3 as a filter

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From: Treena Joi (tjoi@stanfordalumni.org)
Date: Thu Oct 09 2003 - 18:17:45 PDT

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Date: Thu, 09 Oct 2003 18:17:45 -0700
From: Treena Joi <tjoi@stanfordalumni.org>
Subject: ca co3 as a filter
Message-ID: <492HJJBRt6832S07.1065748665@uwdvg007.cms.usa.net>

On the subject of calcium carbonate ... why is it, namely diatomaceous
earth, useful as a filter in swimming pools?

Treena Joiful

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