John-- Does your brewing method involve constant agitation (bubbling/stirring)? If not, it might be interesting to observe how it alters your present setup's proneness to festoon the cathode, since it's a good feature to incorporate for minimizing particle size.
Also--in case you missed it--the CS archives should contain a spate of posts from last year about experiments with the "bagged cathode" method. I believe the innovator claimed it adequately controls said sludge. --Russ ----- Original Message ----- From: John Pannell To: silver-list@eskimo.com Sent: Saturday, July 13, 2002 3:03 PM Subject: CS>Size of cathode I am trying to refine my CS generator. There is a lot of silver plating out as grey sludge on the cathode. I would like to find a way to minimize this. I use 3 Maple Leaf coins 3/4 submerged as anodes and a single stainless steel cathode approx. 1/2" x 3 1/2" x 1/16" in a 1500 milliliter container with a switching power supply starting at 20 volts & I manually lower the voltage to maintain about 1.5 to 2 milliamps current. Does the size of the cathode make a difference? I thought that using a smaller cathode might leave less surface area for the silver to plate out, but would this affect the current?
