Your thoughts on the still are very interesting.
I bought a still a while back to distill water and have been using it
since.One of the bigest faults I beleive with it is the fact it only
has a capacity of 5litres(to cover the laws in Australia I would
think)and I have given a lot of thought to how I could make a
continuous still.Your ideas have got me thinking again and know doubt
it will get the brain in action.
One of the features of the 5lre still I have is that it turns itself
off when it has run out off water(you can set it going at night and
have distilled water in the morning)
This is simply done with a switch that is attached to the boiler,that
is heat activated.When the boiler gets too hot it switches off power
to the element.I imagine you can get them at various set temp
It is only a small device and I think it would not be very expensive
(my guess would be around $15 -$20 at the most)
I will watch the followups to your post with interest and will pass
on my thoughts in the future.