You’re correct in thinking the reflux is the way to go. I have run a very efficient reflux for several years only lately running the commercially available air cooled stil recently for convenience and small lots.
Running a reflux I rapidly produce several litres of 96% from 5 UK Gal of wash, this is already clean enough to drink but after charcoal filtering is as good as commercial spirit.
I bought the kit for the 4 foot filter column but as yet haven’t found the time.
I run it several times through a Britas water filter at, as you say 40-46% the results are good but a little tedious. I don’t buy new filters, just pick ‘em up here and there when I find them. Thinking of refilling them from the Kilo bags of charcoal I purchased.
Best of luck, hope to hear again soon.
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