Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!swrinde!zaphod.mps.ohio-state.edu!samsung!umich!vela!bbesler
From: bbesler@vela.acs.oakland.edu (Brent Besler)
Newsgroups: sci.electronics
Subject: Re: Measuring pH and Hardness of Water
Message-ID: <372@vela.acs.oakland.edu>
Date: 15 Mar 90 19:16:10 GMT
References: <6414@sbcs.sunysb.edu> <371@vela.acs.oakland.edu>
Reply-To: bbesler@vela.acs.oakland.edu (Brent Besler)
Distribution: na
Organization: Oakland University, Rochester MI
Lines: 7

Ion slective electrodes and meters for determining water hardness do indeed
exist.  One source is Thomas Scientific(609) 467-2000.  They have a number
of regional toll free numbers.  The cost of the ion selective electrode for
water hardness is $395 and the various meters to which the electrode is hooked
run about $950.  pH electrodes run about $85 and can be used on the same 
meter.
                                          Brent H. Besler