I bought this generator about 7 years ago and it still works perfectly. It is $250 for the generator. You have to buy the 99.99% pure silver wire (12 gauge - 6 inches long each) separately, but it is only $35 for a set, which will probably last about a year unless you are brewing a ton of it for other uses or people. Make sure you only use DISTILLED water. No other kinds of water whatsoever can be used to brew it. I just buy it at the store for .87 cents a gallon. It really is pennies a glass when you brew yourself. Many stores charge upwards of $50 a liter, which is insane, and I don't know how they get away with that. You get a deep jar or tall narrow Tupperware container that can hold about 750ml - 1000ml of liquid. When you place the generator on top of it you submerge the wires in the water, you want a size of container that allows the end of the wires to hover maybe 1/4 -1/2 an inch from the bottom, with maybe 1/2 inch between the top of the water and the base of the wire sticking out from the generator. The website here has a ton of information about it and directions, which I recommend looking through. They recommend brewing for about 3 hours per batch, which is done for those who drink it for short periods of time (which is totally safe). I brew mine for 8 hours to make it super concentrated. This isn't recommended for CS you drink, but is fine for enemas or for treating ear infections because it doesn't get absorbed.
http://www.thesilveredge.com/howto.shtml#.V4Epp9L6uUl
