Here's a link to a forum thread that contains some good general information 
about "the art of making colloidal silver":
http://goldismoney2.com/threads/the-art-of-making-colloidal-silver.61973/
the principles outlined will be helpful whatever generator you may have.

Sent from Mail for Windows 10

From: pc
Sent: Sunday, August 20, 2017 4:21 PM
To: silver-list@eskimo.com
Subject: Re: CS>Nebulizer and food grade 3% hydrogen peroxide

just wipe off the dark sludge and get busy making silver.  : )

On Sun, Aug 20, 2017 at 5:48 PM, RaVen Sequoia <aslra...@gmail.com> wrote:
Hi All, 
I finally found my old silver colloidal machine. However the silver stick 
thingy is all tainted. Am I supposed to clean it before submerging them in 
water to make a new batch? Please advise, thank you. 

RaVen