On 8/3/06, Robin van Spaandonk <[EMAIL PROTECTED]> wrote:
Perhaps it's just dissolved gas in the water forming a bubble at the site of a "dislocation" in the surface of the Teflon. Perhaps it got scratched somewhat when you put the assembly in the tray?
In which case they would form in rows. They seem to be randomly distributed in a limited area.
A simple test might be to make a deliberate scratch somewhere, and see if it collects bubbles. Is the tray itself plastic all the way through, or just a plastic coating on metal?
Coated aluminum. Obviously some kind of capacitive field effect which only applies to the positive anode and a neutral metal with a interceding dielectric. Terry

