croweater wrote:Ok I'll have to pull them out for pot stilling though won't I or won't it make any difference for that
grumpthehermit wrote:SO is there merit in extending the column on one of these stills ???
I was thinking about this for mine but reading Croweaters experience I am thinking maybe not ???
Just wondering.
Cheers
GTH
stilly_bugger wrote:Don't pack them in too tight.
Scrubbers
We believe that metal scrubbers are the best packing material to use in a distillation column. However, people have more problems handling scrubbers than with any other part of their still! More often than not, scrubbers are taken straight out of the packet and pushed directly into the column. This is the easiest way to ensure that they're packed too tightly. Since they have a rough surface, the scrubbers tend to grip the sides of the column. Shoving them into a column is rather like trying to push an unwilling cat through a narrow hole − it tends to resist!
We've found that the best procedure is to pull the scrubber out into a loose cylinder, which should slip easily into the column. Remember, we want a lot of airspace inside the scrubber so vapor can get through easily. If you still have trouble with them, you can cut them into smaller pieces that will slip easily into the column without bunching up. After filling the column with scrubbers, you should be able to blow through it relatively easily. If you feel resistance, you have packed the column too tightly.
Another test for proper packing is the ability to get the scrubbers back out. In a properly packed column, the scrubbers will remain in their place, but can be easily pushed out with a large dowel or a pipe that fits inside of the column. This same dowel or pipe can be used to gently push scrubbers down into the column when packing it.
stilly_bugger wrote:Me neither. I'm just going off the advice in Nixon & McCaw's The Compleat Distiller (p. 90):
P.S. I'm still trying to work out what SPP is. :think:
croweater wrote:@Stilly just wondering whats with the lower thermo reading , as in what information do you get from the lower reading different from the higher reading and how does it benefit . easy enough for me to put one in if there's a need for it
eminiM wrote:Spiral Prismatic Packing...........likey 4 or 5 times denser than scrubbers and has a much lower hetp value. I think it's a combination of packing density and weight which allows for better stability.
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