filling an airlock

Homebrew Talk - Beer, Wine, Mead, & Cider Brewing Discussion Forum

Help Support Homebrew Talk:

Maylar

Supporting Member
HBT Supporter
Joined
Jun 21, 2014
Messages
4,465
Reaction score
1,703
Location
New Haven County
This is definitely a noob question -

I have a 1 gallon glass jug, #6 rubber bung, and an S-style bubbler airlock. I put vodka in the airlock such that both "chambers" were 1/2 full - like I've seen in pictures. Push the bung into the bottle, and the air pressure in the bottle pushes all the liquid out of the first chamber.

So... what's the correct way of doing this?

TIA

Dave
 
Joined
Jul 17, 2012
Messages
2,985
Reaction score
429
Location
Eagleville
That's it.

If pressure changes it will pull back the other way.

You want them half full so they will stop air coming through but not suck the liquid back with it.

Say if you crash cool the when the temp drops it will suck back towards the fermenter a traditional airlock will suck liquid back through until there isn't enough to make a seal this defeating the purpose of the airlock.



Sent from somewhere to someone
 

microbusbrewery

Senior Member
Joined
Jan 4, 2011
Messages
2,122
Reaction score
325
Location
West Jordan
+1, the way you're doing it is right. They don't need to be equal levels to do what it's supposed to do; keep air out.
 

MaxStout

Well-Known Member
Lifetime Supporter
Joined
Mar 29, 2013
Messages
11,695
Reaction score
9,207
Location
Twin Cities north 'burbs
Once the yeast generate CO2, there will be positive pressure within and those 2 airlock chambers will never be equal. It's good to go the way you set it up.

If you are keeping the beer in there for an extended period, check it periodically for evaporation losses in the airlock and replace sanitizer as needed.
 
Top