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General Category => Yeast and Fermentation => Topic started by: haeffnkr on August 28, 2017, 06:07:48 PM

Title: 3 piece air lock keeps blowing out sanitizer
Post by: haeffnkr on August 28, 2017, 06:07:48 PM
Hi,
I have been using a 3 piece air lock with starsan in it for a while,  The airlock assembly is in the stopper in my 14 gallon fermenters.

During the first few days of active fermenation the starsan bubbles all out of the air lock and I have to keep adding more and have the fear it blowing it all out and allowing air into the brew. I usually dont have a yeast blow out problem.

Is there a better air lock design or should I just use a blow off tube or any other suggestions to keep a safe amount of starsan in the airlocks?

thanks Kevin
Title: Re: 3 piece air lock keeps blowing out sanitizer
Post by: denny on August 28, 2017, 06:15:09 PM
How about using less?
Title: Re: 3 piece air lock keeps blowing out sanitizer
Post by: stpug on August 28, 2017, 06:30:13 PM
Vodka also works as a sanitary liquid in the airlock and since it doesn't foam it generally doesn't suffer the same problem that starsan does.  Vodka does tend to evaporate a little quicker than water/starsan so just keep an eye on it.
Title: Re: 3 piece air lock keeps blowing out sanitizer
Post by: jeffy on August 28, 2017, 07:24:21 PM
I don't even use an airlock during initial fermentation.  The reason yours bubbles out is from the CO2 escaping, which would not allow air to ingress anyway.  When it calms down I install one. 
If you are still nervous, I'd suggest a blow off hose with the end in a jar of sanitizer.
Title: Re: 3 piece air lock keeps blowing out sanitizer
Post by: haeffnkr on August 29, 2017, 03:16:04 AM
Thanks for the good suggestions.

Kevin
Title: Re: 3 piece air lock keeps blowing out sanitizer
Post by: brewinhard on August 29, 2017, 11:53:36 PM
Mine do the same during the more vigorous part of fermentation. No big deal. When it looks low, just pop off the top and spray some more starsan from a spray bottle into the chamber.