db1979 wrote:You've scrubbed, soaked in citric and given it vinegar and sacrificial runs. If the foreshots, heads, hearts and tails of your sacrificial run don't budge any remaining residue inside your still, subsequent runs won't remove it either. Also, most substances aren't coloured, so the cuts jars that are colourless could very well have something nasty in them. Other's cleaning runs that don't have that colour aren't an indication of the success or failure of your cleaning run. If that colour appears in your next run, then you'll have a serious issue.
My guess is that the colour is from polymeric compounds formed in the flame of your torch, basically precursors to soot. They'd be formed due to incomplete combustion, reactions between the complex chemicals within the flame and the flux or by impurities in the gas.
Got a name for your still?
db1979 wrote:You've scrubbed, soaked in citric and given it vinegar and sacrificial runs. If the foreshots, heads, hearts and tails of your sacrificial run don't budge any remaining residue inside your still, subsequent runs won't remove it either. Also, most substances aren't coloured, so the cuts jars that are colourless could very well have something nasty in them. Other's cleaning runs that don't have that colour aren't an indication of the success or failure of your cleaning run. If that colour appears in your next run, then you'll have a serious issue.
My guess is that the colour is from polymeric compounds formed in the flame of your torch, basically precursors to soot. They'd be formed due to incomplete combustion, reactions between the complex chemicals within the flame and the flux or by impurities in the gas.
Got a name for your still?
Lowie wrote:that's very technical DB. Do you read science journals? :laughing-rolling: :laughing-rolling: :laughing-rolling:
db1979 wrote:You've scrubbed, soaked in citric and given it vinegar and sacrificial runs. If the foreshots, heads, hearts and tails of your sacrificial run don't budge any remaining residue inside your still, subsequent runs won't remove it either. Also, most substances aren't coloured, so the cuts jars that are colourless could very well have something nasty in them. Other's cleaning runs that don't have that colour aren't an indication of the success or failure of your cleaning run. If that colour appears in your next run, then you'll have a serious issue.
My guess is that the colour is from polymeric compounds formed in the flame of your torch, basically precursors to soot. They'd be formed due to incomplete combustion, reactions between the complex chemicals within the flame and the flux or by impurities in the gas.
Got a name for your still?
RC Al wrote:What packing are you planning on?
Some ss 6mm hole mesh might be better or some bigger holes in the packing retainer, depends on what you want to use, having it close in size to a sieve plate hole may cause issues?
Lowie wrote:Just to throw a spanner in the works, mine are 3mm and I've got a shit load of 'em...
Justin_P wrote:Awesome build mate, just read it from start to finish as its very similar to what I am thinking of building. Look forward to seeing more.
Justin
db1979 wrote:18 L of 88 % will be 40 L of 40 %. You're gonna make some serious amount of neutral with that :handgestures-thumbupleft:
Chocko6969 wrote:woodduck wrote:Get a good clear coat and put on it before it starts to patina :handgestures-thumbupleft:
I used this, works a treat
https://goo.gl/images/9AsxXq
Thanks for this, I'll do the sacrificial run first I think to make sure I don't have any pinholes in any of the soldering and have to heat it again.
Chocko
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