You are correct, MaryAnn, my bad.
"The Colloid Master allows the modulated current to pass in one direction to 
just the optimal amount of time that is needed to allow silver to disperse 
without too strong an action on the electrodes, then the current reverses, in 
effect using electromagnetism to push the particles away from the electrodes 
and allows them to disperse into the water. This describes one cycle, which 
lasts about one minute and is a built-in automatic feature."
I'm afraid that when my mind encounters a statement such as "in effect using 
electromagnetism to push the particles away", my mind simply erases the entire 
paragraph.  There are other parts of the sales pitch that I graciously chose to 
ignore involving solar events and ionization of the air  being blamed for the 
unpredictability of their results, that I blanked out.  It is hard to criticize 
statements such as these because for all I know, they might actually believe 
them.  I can see some "cut and paste" activity from Frank Key's site (and Frank 
has his own axes to grind), which try to obfuscate the fact that particle size 
can be determined by the color.  This is done by emphasizing the effect of some 
factor which in reality is orders of magnitude smaller than that of particle 
size.  This is the tactic of "confusion to the enemy" which is in this case, 
the customer.  The origin of this thread was Tel comparing this unit to the 
silverpuppy, which has a very large and loyal band of users, for good reason.  
Ken does not BS his customers.  I can read through his site without triggering 
my gag reflex.
If a person is willing to turn on a multimeter and push the button of a laser 
pointer they can, for the same money, get almost 10 times the 9997 (Not 999) 
silver, a proper power supply (not a wall wart), a high quality laser pointer, 
a circuit board with a slider type potentiometer and one gallon jar.  This will 
produce a gallon a day of 15 to 20 PPM for years.
http://goldismoney.info/forums/showthread.php?t=371376