John,

     It isn't the ppm that is so important (although 5 - 10ppm has shown to be 
ideal in most cases), it is particle size.  The smaller the better... and the 
stronger the solution.

     Bob
  ----- Original Message ----- 
  From: john freese 
  To: silver-list@eskimo.com 
  Sent: Wednesday, July 08, 2009 4:49 PM
  Subject: CS>PPM


        Hello

        If weaker CS is better than a stronger CS could somebody please tell us 
how a 5ppm is more effective than a 10ppm? Thank you. John.