Could you tell me why de-ionised distilled water shoud not be used for
making CS? It's all you can get here in Spain and my CS seems to be working
just fine. Please enlighten me.
Thank you
Ian

So you have decided to make your own colloidal silver.  This is a smart move
on your part for several reasons.  First and foremost is the fact that you
will be in complete control of the quality of your product.  Colloidal
silver is basically a very easy product to make.  The process that generates
colloidal silver is called electrolysis.  It is the same process that is
involved in electroplating.  This process moves tiny little bits of a metal
( ions ) from one piece of metal parens the anode and program to the
cathode, which can theoretically be any conductive metal, but in good
practice should also be pure silver.  You need a vessel to hold whatever
amount of pure distilled water that represents the amount of colloidal
silver product that you will end up with.  It is very important that this is
steam distilled water.  Not de-ionized.  Not ozonated.  We are fortunate in
the United States to have this available at stores such as Wal-Mart,
Walgreens, and many others.  The quality (purity) of the distilled water
that you buy by the gallon will vary.  It is produced in large plants, and
the quality depends on the water quality that they start off with and how
well they have maintained their distilling equipment.  I will show you how
to do a quick check to make sure that the distilled water is suitable for
making colloidal silver before you use it.