Well to carry on from my results last week, I purchased another dozen
SS pot scrubbers and replaced almost all the marbles in my reflux
tower (all but about 1.5" form the top). This caused a number of
interesting things. 1. The temperature at the top of the tower
stabilised lower than before and held at 78 degrees with half the
water through the reflux condensor that I normally use. 2. The % of
the spirit increased from about 81% to 88%. It took only about an
extra hour to get all the good spirit than before and I found myself
turning the still off when the temperature hit 82degrees. (it was
still dripping out 82% spirit but very slow).
I now wonder if increasing the hight of the tower has to be my next
step to increase % further? Or maybe someone has come up with some
reflux media better than pot scrubbers?
Cheers for now