I'm currently using a column I bought from Mile high that mounts directly to a beer keg. I'm using a 15.5 gal keg now.
Is there any advantage to using say a 7.5 gal keg for 5 gal washes?
Thanks,
Steve
Still pot size?
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cellsitegod
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TEC
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In general, a larger surface area gives you a larger liquid to vapor transfer area. The 7.5 and the 15.5 gal kegs are the same diameter so I don't see any difference in surface area. Only other thing would be the extra energy needed to heat the increased metal of the larger keg.
Myself, I have not noticed any difference caused by the extra headspace in the larger keg when running the lower volumes.
Myself, I have not noticed any difference caused by the extra headspace in the larger keg when running the lower volumes.
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Guest
What tec said. From my reading I agree that the extra head space does not adversly affect your operation. I MAY, take a little longer to run everything out but who cares? If we don't have time for this hobby, why are we doing it, huh? 
After all, when the alcohol vapor is seperated, it will rise and seek an outlet (via your column at the top) and as the temp continues to rise and other vapors (water, etc.) begins to seperate, these will force the lighter vapor (now floating around at the top of the boiler) out completely. Don't really see any advantage in the added expense of two boilers. Just my 2 cents worth, but I agree with tec!
Spiritmaker
After all, when the alcohol vapor is seperated, it will rise and seek an outlet (via your column at the top) and as the temp continues to rise and other vapors (water, etc.) begins to seperate, these will force the lighter vapor (now floating around at the top of the boiler) out completely. Don't really see any advantage in the added expense of two boilers. Just my 2 cents worth, but I agree with tec!Spiritmaker