Spike Brewing 12.5 Conical Fermenter Giveaway!

Home Brew Forums > Home Brewing Beer > Equipment/Sanitation > Air bubbles in the auto-siphon

Reply
 
LinkBack Thread Tools
Old 05-18-2007, 02:57 PM   #1
cbird01
Feedback Score: 0 reviews
Recipes 
 
Join Date: Oct 2006
Posts: 167
Default Air bubbles in the auto-siphon

I just bought a brand new Fermtech autosiphon. On the first use I was racking from primary to secondary. I noticed a slow stream of bubbles coming down the tubing as I was racking. It was maybe 3 inches between bubbles, but sped up to like an inch per bubble. They were not little tiny ones either. I kept moving the inner tube around to try and stop it but they just kept coming. The siphon is obviously defective and the brew store is replacing it, but do you think my beer will be ruined by oxidation or should I relax and have a homebrew? (any signs I should look for, or will I not know until I taste...anything I can do?)

btw, i tested it on water after this and saw that the bubbles were passing through the black seal that is attached to the inner tube and causes the siphon action.

__________________
cbird01 is offline
 
Reply With Quote Quick reply to this message
Old 05-18-2007, 03:08 PM   #2
Beerrific
Feedback Score: 0 reviews
 
Beerrific's Avatar
Recipes 
 
Join Date: Mar 2007
Location: Georgia
Posts: 5,600
Liked 45 Times on 37 Posts
Likes Given: 9

Default

The first time I used my auto siphon I had the wrong size tubing and it got all sorts of air in it. I can't notice any oxidation type flavors. I think you will be fine too.

What you are describing happened to me too, luckily I was siphoning cooled wort, so the aeration was a good thing. I don't know it happened, I think inner tube did not seal well. Maybe because it was wet? I have used it again twice since and it worked perfectly but I made sure it was dry before using.

__________________
Beerrific is offline
 
Reply With Quote Quick reply to this message
Old 05-18-2007, 03:19 PM   #3
cbird01
Feedback Score: 0 reviews
Recipes 
 
Join Date: Oct 2006
Posts: 167
Default

Quote:
Originally Posted by Beerrific
The first time I used my auto siphon I had the wrong size tubing and it got all sorts of air in it. I can't notice any oxidation type flavors. I think you will be fine too.

What you are describing happened to me too, luckily I was siphoning cooled wort, so the aeration was a good thing. I don't know it happened, I think inner tube did not seal well. Maybe because it was wet? I have used it again twice since and it worked perfectly but I made sure it was dry before using.
Sounds like you were siphoning wort though...wonder if it makes a difference that this was coming from primary? not sure about the dry thing...it will become wet around the seal as soon as you pump it a few times to get it going...
__________________
cbird01 is offline
 
Reply With Quote Quick reply to this message
Old 05-18-2007, 03:30 PM   #4
Beerrific
Feedback Score: 0 reviews
 
Beerrific's Avatar
Recipes 
 
Join Date: Mar 2007
Location: Georgia
Posts: 5,600
Liked 45 Times on 37 Posts
Likes Given: 9

Default

Quote:
Originally Posted by cbird01
Sounds like you were siphoning wort though...wonder if it makes a difference that this was coming from primary? not sure about the dry thing...it will become wet around the seal as soon as you pump it a few times to get it going...

The first time it happened, when I had the wrong size tubbing, I was racking from primary to secondary, no oxidation flavors developed.
__________________
Beerrific is offline
 
Reply With Quote Quick reply to this message
Old 05-18-2007, 03:45 PM   #5
Rhoobarb
Feedback Score: 0 reviews
 
Rhoobarb's Avatar
Recipes 
 
Join Date: Jan 2005
Location: Woodstock, GA
Posts: 3,573
Liked 17 Times on 12 Posts
Likes Given: 2

Default

Check the diameter of the tubing; it should be fairly tight when it slips over the racking cane. It helps if the racikng cane and tubing are wet, IMHO.

Another thing I do is something I read somewhere. It seems to help remove any air bubbles. As soon as the wort flows, pinch the tubing near the racking cane for a second or two, then release.

__________________
Rhoobarb is offline
 
Reply With Quote Quick reply to this message
Old 05-18-2007, 04:06 PM   #6
pjj2ba
Look under the recliner
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
 
pjj2ba's Avatar
Recipes 
 
Join Date: Jul 2006
Location: State College, Pennsylvania
Posts: 3,427
Liked 192 Times on 158 Posts
Likes Given: 22

Default

The bubbles you see may not be a leak at all. If you are transfering from primary to secondary or to a keg or bottling bucket, the negative pressure drop created in the siphon can be enough to cause some of the dissolved CO2 to bubble out, giving the illusion of a leak. I had bubbles forming but could find no leaks and then I thought about it and figured it just must be gases coming out of solution.

__________________
pjj2ba is offline
 
Reply With Quote Quick reply to this message
Old 05-18-2007, 04:12 PM   #7
kornkob
Resident Crazy Uncle
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
 
kornkob's Avatar
Recipes 
 
Join Date: Oct 2005
Location: Madison WI
Posts: 1,828
Liked 12 Times on 6 Posts
Likes Given: 1

Default

Odds are it is merely CO2 that has leached out of the beer.

The seals work fine wet, in fact that is probably the prefered state. I've never used my autosiphon dry--- it's always wet with santizier when I use it as is everythign else that touches my beer.

Relax you must. Worry not. Beer you should drink, homebrew, umm?

__________________

Jason 'Kornkob' Robinson

I wanna move to Theory. Everything works in Theory.

kornkob is offline
 
Reply With Quote Quick reply to this message
Old 05-18-2007, 05:04 PM   #8
cbird01
Feedback Score: 0 reviews
Recipes 
 
Join Date: Oct 2006
Posts: 167
Default

Not in this case guys...it is definitely a defective autosiphon. Right after this happened, I tried it with a pan of water and it did the exact same thing and I could actually see the bubbles coming through the seal.

__________________
cbird01 is offline
 
Reply With Quote Quick reply to this message
Old 05-18-2007, 05:14 PM   #9
DesertBrew
You're not my type
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
 
DesertBrew's Avatar
Recipes 
 
Join Date: Jan 2005
Location: Twin Cities, MN
Posts: 5,453
Liked 76 Times on 72 Posts
Likes Given: 147

Default

I get this sometimes as well and it's usually a looser fit of the tubing to the siphon. I have to nip off an inch or so of the line every once in a while to make for a tighter fit. Also, another pump to get a bigger flow often times makes the bubbles go away.

__________________
DesertBrew is offline
 
Reply With Quote Quick reply to this message
Old 05-18-2007, 05:18 PM   #10
hobbsj
Feedback Score: 0 reviews
Recipes 
 
Join Date: Feb 2007
Posts: 65
Default

i had something similar yesterday. i kept losing suction when going from primary to secondary. it was really frustrating. towards the end, i was just stirring up the sediment on the bottom and tossed the rest. i didn't want all that stuff in my secondary. it would have defeated the purpose of the transfer. i lost like 1/2 a gallon. i think i'm going to go to the plastic splitter thing somebody posted on here a while back.

__________________
hobbsj 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
how to avoid bubbles with auto siphon? MattHollingsworth Equipment/Sanitation 11 08-19-2009 08:27 PM
Bubbles in my auto siphon emoutal Beginners Beer Brewing Forum 7 09-22-2008 02:15 PM
Bubbles from auto siphon BrooZer General Techniques 9 12-31-2007 04:59 PM
Auto siphon bubbles? gallagherman General Techniques 5 12-06-2007 01:03 AM
Auto siphon veggiess Bottling/Kegging 14 09-29-2006 04:54 PM



Newest Threads