Dave,
One must have the utmost respect for 15,000 volts !!! The basic rule with
high voltage is always keep one hand in your back pocket and then turn off the
power BEFORE any adjustments or measurements.
If you are referring to the microwave power supply (3,500 v no load) the same
rules apply but once the power is on the cell voltage drops to about 500 v and
continues on down to as low as 100 volts.
Yes I use a PWT.
As stated the initial current is the determining factor as to the length of
the brew cycle.
The initial current is a function of the conductivity of the DW. If you buy a
large quantity of DW and hold it at normal room temperature the conductivity
will slowly increase.
I work at about 68 deg F. in my basement. It adds stability to the DW.
If you shut off the system at the same current density then PPM's will be
very close.
Does that answer your questions?
"Ole Bob"