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Re: KH/PH/CO2

To: Aquatic-Plants at actwin_com, jglover at autometric_com
Subject: Re: KH/PH/CO2
From: Chuck Gadd <cgadd at cfxc_com>
Date: Thu, 13 Apr 2000 02:05:25 -0600
Delivered-To: fixup-Aquatic-Plants at actwin_com@fixme
References: <200004130748.DAA25098 at actwin_com>

> wondering if someone could help explain why water could have a PH of
> 7.4 and no measurable KH.  I tried two differnt test kits, but I
> haven't ruled out a bad reading.  If I add CO2 to this, will that be

Hopefully some of the real water chemistry experts will jump in here,
but I believe that without some buffering, the pH is meaningless, and
will change quickly and easily in the presence of any acid or base.

I would guess that adding CO2 will drop the pH very quickly and far.

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