Hello Bob,
I used 2 cups of water in a Pyrex measuring cup. The silver wires were six
inches long. The spacing was variable, since my only concern was trying to
keep the 2 silver wires from touching each other in the water. I had the
alligator clips holding the silver wires perched on top of the measuring cup.
The time to make CS was variable also, from 20 seconds, to maybe three
minutes,
depending on the water used. The closer to distilled the water was, the
longer the process took. To determine when the CS was done, I just stirred and
took out the silver when the water was EVER SO SLIGHTLY gray.
I hope this answers your questions. I have no clue what the PPM was, and
I'm sure that it varied considerably.
Jill
