Hi,
I finally got around to going and purchasing the necessary items to make the 
magnesium bicarbonate water.  The only thing is that when I got home  I found 
that the Seagram's club soda I purchased also has potassium phosphate, 
magnesium 
sulvate and potasium bicarbonate in it.  The directions were specific about 
having nothing other than CO2 and water but I have been looking and have not 
been able to find any seltzer or club soda in the stores I have been checking 
that are only CO2 and water.

Any ideas?
Thanks.
PT