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Old 09-09-2012, 10:05 PM   #11
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Gotta give props to Jeremy from FH Steinbart in the video.
Probably picking up air bubbles from poor connection between tubing and racking cane or siphon.
+1 on autosiphon.

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Old 09-12-2012, 06:44 PM   #12
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Same use to happen to me until I hose clamped the tube to the cane.

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Old 09-12-2012, 11:45 PM   #13
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I've always just pinched the tube momentarily right below where the cane ends and the unsupported tube begins.

In some manner this allows the liquid to pick up the accumulated air and flush it out.

Funny, it's like scuba diving. Small bubbles collect in your bloodstream and can cluster in your joints. If you come up too fast you get decompression sickness, also known as the bends. That's why you need to ascend slowly.

Okay, maybe it's nothing like scuba diving, but that's what it reminded me of.

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Old 09-13-2012, 03:56 PM   #14
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I rack (no autospiphon) and I use the same method as normzone above. Just pinch the tubing a bit right after where it is connected to the cane the the bubbles will flush out.

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Old 09-13-2012, 04:06 PM   #15
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light film of keg lube around the seal on the end of the racking cane

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Old 09-13-2012, 08:06 PM   #16
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Those are good ideas. Will try that also. I feel like when I use a hose clamp I run the risk of cracking the racking cane if tightened too much.

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Old 09-16-2012, 03:58 PM   #17
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Alright, so I bottled last night and here is what I did: First, I filled the tubing with water as I always do, but also tried to get some into the cane. Then pushed the tubing on the cane and gave it a good effort to make sure it's on there as far as i could get it. When I started the siphon, it went pretty well, had some air bubbles but the flow seemed a little better already. I then followed the trick to squeeze the tube and that worked really well. No more bubbles after that and the siphon went through without issues.
Thanks for all the help!

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Old 11-27-2012, 06:24 PM   #18
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Been reading these posts because I always get the air bubbles too. It usually doesn't happen right away but they start at some point maybe around 1/3 or 1/2 way through siphoning. Going to start by trying a clamp. My question is, does anyone know if the bubbles cause any harm to the beer?

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Old 11-30-2012, 01:38 PM   #19
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Well, they may cause some oxidation. In my case, the big issue was that the bubbles eventuelly pretty much just stopped the siphon completely. And the siphon was also extremely slow.
For me, I resolved it with the pinching the tubing trick and pushing the tubing onto the racking cane as far as I possibly could. Now I don't even need a clamp.

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Old 11-30-2012, 03:33 PM   #20
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I use an auto siphon & connect the tubing to it with a hose clamp.
No bubbles.

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