Tuffy wrote:25 litre turbo pure yeast
A good neutral probably wont come from a turbo without carbon filtering your spirit but its a good starting point to learn.
Around 4 liters at ~87 % sounds pretty good from 7kg of dextrose.
As for temp, thats only a really short column and even packed with mesh it would probably struggle to produce 96% at 1.2 l/m.
My old PDA-1 had a ~30 to 40cm column with packed mesh before i got a 70cm extension an that usually could only produce 96% @1200 watts and 500ml a minute.
My 3" meter long mesh packed column produces only around 2.5 liters a min at 96%. Definitely clean and repack the column as suggested and next time you run try around half the power and slowly open the take off valve after youve given the column time toreach equilibrium. Close the take off valve and give it 10 mins from the first drops. Then see what the strength is. Open it until you Find the point it start to drop off and just under thats your maximum flowrate.
If you feel cocky you can increase the power a bit but again watch your strength. If you open up a bit more and the srength drops again you're overpowering it.
Its all going to be a bit of trial and error on your first couple of runs.
Good luck bud.
Warra