Boka still

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Boka still

Postby doctorx » Thu Sep 22, 2022 12:05 am

So I have been running the 5 star boka recently. At the top of the still there is an end cap with a hole in it.

I understand the reason for this which is to prevent buildup of pressure.

In theory though, could I not replace the holed end cap with a solid end cap and run my boiler at low power and high water flow?

I understand this is risky.

Is it something you can do and manage the risk?
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Re: Boka still

Postby bluc » Thu Sep 22, 2022 6:34 am

Dont block the vent hole :naughty:
What are you trying to achieve by blocking the hole?
Last edited by bluc on Thu Sep 22, 2022 6:36 am, edited 1 time in total.
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Re: Boka still

Postby RC Al » Thu Sep 22, 2022 10:19 am

:text-+1: with bluc. Please don't try this :handgestures-thumbdown:

The reflux condenser cant work if there is no vapour flow past it. The top vent is 100% needed, some times I wonder if they shouldn't be bigger to slow the flow down through the condenser.
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Re: Boka still

Postby doctorx » Thu Sep 22, 2022 11:14 am

Glad I asked the question. I clearly need to refresh my understanding of chemistry.

I was thinking that by creating a closed system and running the still at a very low power input I could increase the efficiency and create better equilibrium within the still.
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equipment: T500 Alembic Dome, kegland pure distilling Alcoengine, 5-star boka

Re: Boka still

Postby doctorx » Thu Sep 22, 2022 11:51 am

Guess there’s a good reason the safety topic is in the newbies section lol
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Re: Boka still

Postby bluc » Thu Sep 22, 2022 4:50 pm

The problem is the valve. If valve is closed and you dont have a vent hole and for some reason the rc fails(small pipe blokage from slime in cooling water real possibility) then there is a real possibility of explosion. Fire is one thing explosion is a whole nuther kettle of fish.

Dont risk it dont block the hole.

As long as there is no steam out vent hole you are at max effeciency as far as the rc goes...
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50l keg boiler 4" still mount 4" sight glass 1" drain..
4 plate 4" bubbler, 600mm packed section

Re: Boka still

Postby bluc » Thu Sep 22, 2022 5:02 pm

Insulate the packed section if you want better stability...
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50l keg boiler 4" still mount 4" sight glass 1" drain..
4 plate 4" bubbler, 600mm packed section

Re: Boka still

Postby doctorx » Tue Sep 27, 2022 10:09 am

Thanks for the advice everyone
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