yup, is still there:
#386 Ionic & Colloidal Silver, Definitive Guide To Making
https://www.youtube.com/watch?v=Xur-oP3bmbc
Nix
Hey, Thanks for the video plug! 
Is there still a question?
Also, I sent Kephra a private email last month but never got a reply. Hope he's not angry with me.
Mark, your deed is amazing, (your channel; videos on YouTube, rock), also, thanks goes
to Kephra, and much, much gratitude to folks like yourselves, and others, who make
our life easier...
Thank you again, keep plugging away.
Nix