Oh no, nothing so scientific Marshall, simply using my Hanna PWT to measure, I see I forgot to mention that. So what would be your guess to the increase ppm in the porcelain bowl also?
From: Marshall Dudley <[email protected]> Reply-To: [email protected] Date: Mon, 21 Oct 2002 10:34:18 -0400 To: [email protected] Subject: Re: CS>Silver plate-out experiment Resent-From: [email protected] Resent-Date: Mon, 21 Oct 2002 07:34:59 -0700 Connie wrote: I just completed an experiment. We often warn pet owners not to use SS, metal utensils for watering when CS is added secondary to silver plate out. My results: I measured several times over a 52+ hr. period. There was nearly 2 c of CS in the stainless steel bowl, 1-1/4 c in the procelain type bowl. They were of comparable size. (No specific reasoning, just how I poured it.) Starting measure of the CS at start was 16.5ppm This was freshly generated, right out of the brewing jar CS, manufactured by my Silvergen SG6 generator. Measured immediately after pouring into the bowls: SS=15.7 Porcelain=16.2 I did cover the bowls with small plates, there should not have been any significant settling of atmosphere contaminants to explain the increasing ppm of the CS water. Time SS Porcelain 3 hrs 14.7 14.6 10 hrs. 13.3 13.2 23 hrs 14.8 13.7 36 hrs 15.8 14.4 48 hrs 19.4 15.3 52 hrs 20.4 17.1 That is exactly what I would expect. It is known that SS can contain copper, and that when silver ions contact copper, the silver plates out, and the copper replaces them. I suspect that the increase in conductivity is from silver particles being replaced with copper ions as well. At any rate, if you want to have CS in the bowl instead of CC, I would not recommend using it. MY conclusion....we no longer need to worry of losing silver ions in the use of SS bowls for communal animal watering. Did you really test for silver? Or did you test for ions of any metal, IE a conductivity measurement? Unless you tested specifically for silver, you cannot reach that conclusion fom your data. Marshall Comments please!! Connie
