Hi Aldona. I'll answer your questions, as best I can, in the order that you asked. l) To set the ppm level, the unit has a dial on the front that goes from 1 to 10. You simply move the dial up for greater ppm-level. I generally brew mine at *3*. 2) I always make one quart at a time. This uusually takes about four hours. If I need more than a quart a day, I'll set it up in the morning and then again when I go to bed. I could make more if I needed to, but I've never needed more than a half-gallon a day for people, dogs, cats and horses. You can use this unit to make a gallon at a time -- I know quite a few people who do this. Don't know about the settings, as I don't do this, but you would use a longer electrode (silver bar) and the Synergenesis people sell those too. It is also recommended that for a gallon, you use an ordinary aquarium bubbler to move the water around, and some people place their gallon jar of water on a warming plate -- which speeds up the brewing process. As far as making less -- I can't think of how you'd do that, or why you'd want to. CS -- or EIS (electrically isolated silver) as we call it here on the list -- is very stable and stores easily for a long time. 3) Yes -- I always use the testing feature on the unit -- to make sure that the distilled water I'm using is pure enough to make a good quality product. The testing feature is simply using the same dial on the front of the unit -- and the unit comes with instructions on how to do all of this. 4) My finished product generally runs around 14 ppm. Periodically I test it to see if I'm on target. To do this, I use a Hanna tester -- which is also sold by Synergenesis. But the people on this list will be quick to tell you that there isn't any method to accurately test CS at home -- any tester will just give you an approximation. The good news is that that's good enough. Any ppm-level under 20 is perfectly safe to use on a regular basis, and any ppm-level over 5 will be effective for anything you'd be using it for. 5) I don't stir my CS at all. A quart is such a small amount, and the brew time so short, that the natural Brownian movement is sufficient to get the job done. 6) Yes -- the Colloid Master has an automatic shut-off. I think this answers your questions. Let me know if I can be of further help. MA
________________________________ @MaryAnn... the Colloidal Master says you can set it at any ppm, so how would you do that? And what about the quantity of water? If its for a quart at a time, then you can only make a quart at a time? Or could you make more or less? How would the settings be then? Also, do you use the feature to test the water first? I don't suppose you know how man ppm your finished product has, or can you test it? How often do you stir? Here's another link I found that is from a german site. You can still look at the products. (http://www.bloodzapper.de/index.php?page=shop.browse&category_id=2&option=com_virtuemart&Itemid=33) He said he has one with 4mm electrodes that can be used to make 500m. at a time, which is about 1/4 of a quart, for 150 Euros. Comes complete with the aluminum case and bottles, etc. Oh, it comes with a timer, so its not an automatic shut off, but I could use one to plug into the socket that will turn off automatically, but I like the feature the silvergen has and I believe the colloidal master also has this feature.
