Electric Brewing Supply 30A BCS Giveaway!


Home Brew Forums > Home Brewing Beer > Beginners Beer Brewing Forum > Back to basics - filling a 3-piece airlock
Reply
 
LinkBack Thread Tools
Old 11-19-2011, 02:13 PM   #1
Misplaced_Canuck
HBT_LIFETIMESUPPORTER.png
Feedback Score: 1 reviews
 
Misplaced_Canuck's Avatar
Recipes 
 
Join Date: Jan 2011
Location: NE Columbia SC - Formerly, Montreal Canada
Posts: 2,758
Liked 133 Times on 108 Posts
Likes Given: 42

Default Back to basics - filling a 3-piece airlock

There's a lot of yap-yap on this forum about filling a 3piece airlock with miscellaneous *safe* liquids in case of a suck-back.

This post is to show how one can fill a 3-piece airlock that will only allow air (and not liquid!) to be sucked-back in the event that there's a pressure differential.

3-piece airlock:



Soak in a a bowl of sanitizer at least 4" deep:



Assemble the 3 piece while still covered in the sanitizing solution:



Up-right the now-assembled airlock, and pull it out of the sanitizing solution. The negative pressure will suck liquid out of the airlock, until it starts sucking air. At this point, it's not possible anymore for liquid to be sucked back.

It's a bit hard to take a picture of (because it happens under 2 seconds), but in this pic the water is draining from the bottom of the airlock:





And the result is a perfectly filled airlock with no possibility of liquid suck back:



Give a small shake to the airlock to release any liquid trapped in the stem.

Voila.

M_C

__________________
Quote:
Originally Posted by Misplaced_Canuck
Carbonic bite? Is that like the bubonic plague?
Quote:
Originally Posted by ebstauffer
Needless to say after more than a few drams my mental efficiency matched my mashing efficiency.
Misplaced_Canuck is offline
davekippen Likes This 
Reply With Quote Quick reply to this message
Old 11-19-2011, 02:23 PM   #2
SwampassJ
Feedback Score: 0 reviews
Recipes 
 
Join Date: Mar 2010
Location: Coral Springs, FL
Posts: 2,162
Liked 37 Times on 34 Posts
Likes Given: 53

Default

I keep looking at the last picture for the water level but all I can see is a bottle of Pliny.

__________________

BLAH BLAH BLAH

SwampassJ is offline
davekippen Likes This 
Reply With Quote Quick reply to this message
Old 11-19-2011, 02:28 PM   #3
KayaBrew
Feedback Score: 0 reviews
Recipes 
 
Join Date: Nov 2008
Location: Jay, Adirondack Mountains, NY
Posts: 2,167
Liked 119 Times on 105 Posts
Likes Given: 93

Default

If you can't figure out an airlock, maybe you shouldn't be playing with the stove/burner and hot liquids!

__________________

"...Careful, man...there's a beverage here!..."

KayaBrew is offline
 
Reply With Quote Quick reply to this message
Old 11-19-2011, 03:34 PM   #4
Misplaced_Canuck
HBT_LIFETIMESUPPORTER.png
Feedback Score: 1 reviews
 
Misplaced_Canuck's Avatar
Recipes 
 
Join Date: Jan 2011
Location: NE Columbia SC - Formerly, Montreal Canada
Posts: 2,758
Liked 133 Times on 108 Posts
Likes Given: 42

Default

Quote:
Originally Posted by SwampassJ View Post
I keep looking at the last picture for the water level but all I can see is a bottle of Pliny.
It figures that the first reply would be about the bottle of Pliny in the background. Hard to get stuff in South Carolina!!!

M_C
__________________
Quote:
Originally Posted by Misplaced_Canuck
Carbonic bite? Is that like the bubonic plague?
Quote:
Originally Posted by ebstauffer
Needless to say after more than a few drams my mental efficiency matched my mashing efficiency.
Misplaced_Canuck is offline
 
Reply With Quote Quick reply to this message
Old 11-19-2011, 03:48 PM   #5
SwampassJ
Feedback Score: 0 reviews
Recipes 
 
Join Date: Mar 2010
Location: Coral Springs, FL
Posts: 2,162
Liked 37 Times on 34 Posts
Likes Given: 53

Default

Quote:
Originally Posted by Misplaced_Canuck View Post
It figures that the first reply would be about the bottle of Pliny in the background. Hard to get stuff in South Carolina!!!

M_C
Every now and then someone brings in a few bottles to the brew store and they share and sample but never when I can make it.

__________________

BLAH BLAH BLAH

SwampassJ is offline
 
Reply With Quote Quick reply to this message
Old 11-19-2011, 04:11 PM   #6
JustLooking
Feedback Score: 0 reviews
Recipes 
 
Join Date: Dec 2009
Posts: 432
Liked 59 Times on 47 Posts
Likes Given: 39

Default

.

__________________

Reason: my bad
JustLooking is offline
 
Reply With Quote Quick reply to this message
Old 11-19-2011, 05:07 PM   #7
ayoungrad
Feedback Score: 0 reviews
Recipes 
 
Join Date: Sep 2010
Location: Newton, MA
Posts: 1,100
Liked 7 Times on 7 Posts
Likes Given: 1

Default

Try what I said about the carboy on the alcohol/airlock post using your method to fill the airlock (which is no different from any other method - the end result is exactly the same).

If you get no suck-back, then I stand corrected.

But I will ask again, do you cold crash?

__________________
ayoungrad is offline
 
Reply With Quote Quick reply to this message
Old 11-19-2011, 05:34 PM   #8
Misplaced_Canuck
HBT_LIFETIMESUPPORTER.png
Feedback Score: 1 reviews
 
Misplaced_Canuck's Avatar
Recipes 
 
Join Date: Jan 2011
Location: NE Columbia SC - Formerly, Montreal Canada
Posts: 2,758
Liked 133 Times on 108 Posts
Likes Given: 42

Default

Quote:
Originally Posted by ayoungrad View Post
Try what I said about the carboy on the alcohol/airlock post using your method to fill the airlock (which is no different from any other method - the end result is exactly the same).

If you get no suck-back, then I stand corrected.

But I will ask again, do you cold crash?
I cold crash all the time. No suck-back with the method posted above, as all the water that CAN be sucked back has already been sucked back. Only air can make it past the airlock (both in and out).

M_C
__________________
Quote:
Originally Posted by Misplaced_Canuck
Carbonic bite? Is that like the bubonic plague?
Quote:
Originally Posted by ebstauffer
Needless to say after more than a few drams my mental efficiency matched my mashing efficiency.
Misplaced_Canuck is offline
 
Reply With Quote Quick reply to this message
Old 11-19-2011, 08:10 PM   #9
ayoungrad
Feedback Score: 0 reviews
Recipes 
 
Join Date: Sep 2010
Location: Newton, MA
Posts: 1,100
Liked 7 Times on 7 Posts
Likes Given: 1

Default

Someone on the other thread says that filling to the max line is overfilled and that will cause suck-back. Now, I can definitely buy that as an explanation for why some people get it and others don't. Your technique must result in a fill that is less than to the full line. This can also be easily accomplished by pouring a little less than usual directly into the outside of the airlock. I'll have to give it a whirl. Good to know.

__________________
ayoungrad is offline
 
Reply With Quote Quick reply to this message
Old 11-20-2011, 12:49 PM   #10
dzlater
Feedback Score: 0 reviews
Recipes 
 
Join Date: Apr 2008
Location: New Jersey
Posts: 1,048
Liked 27 Times on 26 Posts
Likes Given: 118

Default

I didn't think suck back was possible with a 3 piece airlock?
The airlock liquid level is below the top of the gas vent tube how can it get sucked into the fermenter?

__________________
dzlater is offline
 
Reply With Quote Quick reply to this message
Reply



Quick Reply
Message:
Options
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Three Piece Airlock busta98 Beginners Beer Brewing Forum 13 03-04-2010 10:03 PM
3 piece airlock or blow off tube richbrostrom Beginners Beer Brewing Forum 7 03-28-2009 06:07 AM
3 piece airlock dsmith1279 Beginners Beer Brewing Forum 8 02-06-2009 06:44 PM
3 Piece Airlock problem Ernie3 Beginners Beer Brewing Forum 9 01-14-2009 08:05 PM
Back to basics. Orfy Beginners Beer Brewing Forum 16 12-29-2006 07:00 PM