If you use the same amount of water at the same temperature with the same
electrode spacing for the same length of time, you'll get somewhat similar
results with a current controlled generator. The production rate is pretty
much linear and predictable.
 With a constant voltage generator, results will vary widely as the
production rate increases [probably] exponentially with time [I haven't
plotted it] ..often called "run away" 
 I stopped experimenting with constant voltage generators early on because
of the tendency for them to be doing a fine job, then rather suddenly make
sludge.
 Another factor that concerns both types of generator is ion path
establishment where a conductive pattern develops between the electrodes.
This is nearly impossible to predict as it's related to currents in the
water. Thermal currents produced by using warm water will vary with room
temperature, that is, cooling rates will vary even if the initial
temperature is the same.  Using a small heater is more predictable but I've
found excess agglomeration at temperatures over 120 deg F.
  I've made good batches with current control at .8 milliamps..starting
voltage at 25 volts...by punching a one inch hole in a tuna can and placing
the CS container on the overturned can on a coffee maker hot plate. The
temperature stayed at 115 deg.  I got 13 PPM in 1 hr 25 min which dropped
back to 6 PPM [meter readings] after cooling....no TE till the next
day....Processed it again on the next day after TE had formed, letting the
cooled CS warm up to temperature and got 16PPM in an additional 1/2 hour or
so which dropped back to 10 PPM on cooling...has stayed very clear for 2
weeks so far.

  Constant mechanical stirring constantly interrupts the ion pathways while
eliminating temperature related problems such as occasional weird
unpredictable deposit formations, making the process much more predictable
as well as having other beneficial effects while using either type of
generator .
 Temperature is still a factor, however.
 I've also found that too fast a stir rate with a slow ion production rate
tends to produce fluffy gray 'growths' on one electrode forming weak
structures that can break off and float around as chunks.
 Constant voltage generators produce ions at a faster and faster rate, so
are less sensitive to this phenomenon.
 Ken


At 03:58 PM 10/22/00 +1300, you wrote:
>Hi again
>
>Further to my recent post, I just made another lot of CS, and this time
>200mls of DWater for 20 minutes and the ppm tester said 7.7ppm.  In 10
>minutes more with warmer water, my batch before this  was 26.somethingppms ,
>how am I supposed to do this correctly.  It obviously has some bearing as to
>the temperature of the water.  Do you use a thermometer?
>
>Also, I have to sterilise my daughters feeding tubes.  Instead of using
>steriizer tablets, how much CS would I use and in what concentration?  !
>litre of water with how much CS?
>
>Thanks
>
>Tracy
>
>
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