Re: Metal Water Trays

From: Paul Burkhardt (burkhard@aries.scs.uiuc.edu)
Date: Thu Jun 12 1997 - 07:34:00 PDT

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Date: Thu, 12 Jun 1997 09:34:00 -0500 (CDT)
From: Paul Burkhardt <burkhard@aries.scs.uiuc.edu>
To: cp@opus.hpl.hp.com
Message-Id: <aabcdefg2294$foo@default>
Subject: Re: Metal Water Trays

Hi Ryan,

> A few years ago I made a water tray out of sheet metal and soldered
> the corners together with lead for my CP's. I now am worried if there is
> any danger of metals dissolving into the water ( that constantly sits in
> the tray ) over time. The CP's are doing great, but for how long?

There is some concern here, since the acidity of the water used for the
CPs can dissolve both metal and metal oxides, leading to metal ions in the
water. Lead is certainly lethal, so I would switch to plastic.

Paul Burkhardt

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