MaryAnn, I will have to buy some, initially, if just for this one  horse.  
And I will certainly look into the home made kind, as well. . the  unit you 
described.
 
JoAnne
PS .. I feel like I'm on my way to becoming a Homesteader :)    LOL
 
 
In a message dated 1/22/2010 11:46:58 A.M. Eastern Standard Time,  
[email protected] writes:

Purchasing Colloidal Silver is extraordinarily  expensive -- commonly 
running thirty or so dollars for 8 oz.  It just  isn't practical to buy it for 
treating  horses