That may be true for batch processing, but for my flow system, the efficiency is about 1/4 of that. That is with stirring and polarity reversal. The exact stats are 1.5 gallon per hour, 20 mA and 20 ppm. This is probably due to the higher concentration tending to plate back out during the brewing.

Marshall


Dan Nave wrote:
The point is, in this case, electrode size doesn't matter.  If you are
conducting at the rate of 1ma and the volume of water is 1 cup, then
you release enough silver into the water in 1 hour hour to have an
equivalent of 17 ppm.  This gives you a rule by which you can get a
ballpark idea of what may be going on in your brewing cell.  You can
use it to estimate.  Just adjust for the variables.  (For current
values before you reach 1 ma, Hint: measure the current vs time and
calculate an average.)

I submit, that with polarity switching, the ppm of the product is
exactly what is calculated by Faradays Law of Electrolysis.  Until you
have any fallout.  And this is more accurate than measuring with a
meter...

Dan



On Tue, Jun 16, 2009 at 5:32 AM, Ode Coyote<odecoy...@windstream.net> wrote:
At 12:56 PM 6/15/2009 -0500, you wrote:
Missed something...

That is "in a time period of 1 hour."

Dan

On Mon, Jun 15, 2009 at 12:54 PM, Dan Nave<bhangcha...@gmail.com> wrote:
Two gallons is probably too much to brew at one time with most of the
home generators we see.
You would be better off starting out with a pint or a quart. (approx.
500 to 1000ml)

My rule of thumb is that the maximum amount of silver released into 1
cup of water at 1 milliamp current in 1 hour is equivalent to
approximately
17ppm.  You can extrapolate from this rule.  Just use your reasoning
abilities, if you have any...  (I assume you do)

Dan
##  Using how much electrode, at what distance and assuming that the first
few hours were actually running at 1 milliamp when that's not very likely if
the water is good.

Ode



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