Re: column tree length
- G'Day Mate,
I built a valved reflux still like yours after having made and run an
internal reflux model. Before I started construction, I did a search
of the forums looking for comments by other users and this is what I
1. Increase the height of the column.
I made mine 36" but the reflux return tube enters the column at a
height of 30.5" I don't know if the packing above this height is
effective (any eggheads care to comment?)
2. Increase the size of the condensor.
I increased the height of mine from 6" to 9" and made a vented cap
with a finger that went down though the center of the condensor coil
to increase the vapour contact with the coil. see a pic of it here
3. The needle valve on the reflux return line is not neccessary.
You can control the amount of reflux with the needle valve on the
draw off tube only.
I gave mine it's first run on the weekend and was very impressed with
it's efficiency using a 1000w element with a 25l wash getting 4.5l of
sorry if this is a repeated post
--- In new_distillers@y..., "ellathai2000" <janhom1@h...> wrote:
> Hi again guys.Thanks for all the help.Well! l still have more
> questions.So here we go.The still l,m making is the Valved Reflux
> Still from the manual "Building A Home Distillation Apparatus".I,m
> using a 50 litre keg ,the book say,s to use a 28 inch column
> tree.I,ve seen different size trees for reflux stills and wonder if
> there is a rule of thumb to making the size greater or