Re: PH Meters

From: Phil Semanchuk (semanchuk~pj@glaxowellcome.com)
Date: Mon Jan 20 1997 - 12:18:01 PST

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Date: Mon, 20 Jan 97 15:18:01 -0500
From: "Phil Semanchuk" <semanchuk~pj@glaxowellcome.com>
To: cp@opus.hpl.hp.com
Message-Id: <aabcdefg278$foo@default>
Subject: Re: PH Meters

> It has been my experience that those cheap pH meters
> sold in garden centers (about $20 US) are
> really worthless crap. I would get wildly
> fluctuating readings on the same sand/peat mix all
> the time. I somtimes would get pH's of 9 or 10
> in pure distilled water. I also got basic
> reading from tomato juice which is acidic. IMHO if
> you are serious about measuring Ph you need a
> real lab grade pH meter.
> However, these are expensive.

The ones I've used have not been so inaccurate but very flimsy. I broke two
in quick succession and then gave up on trying to tote them into swamps.

Phil

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