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We have a hose that fits some of our equipment (bottle filler wand) but it is loose on both the racking cane and auto siphon. Is there a standardized size for this equipment or does it vary?

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3 Answers 3

up vote 3 down vote accepted

In my experience, there are three common sizes: 3/8", 1/2", and 1".

Racking equipment commonly uses 3/8" tubing. This will, of course, vary by brand, but I've found that most of the equipment I've ever used requires 3/8" tubing. 1/2" is less common but still easy to find.

1" tubing is often used for blow-off tubes since it fits easily into most glass carboys and provides enough space for blow-off gunk so that it doesn't clog.

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I expect someone with more experience will answer your question outright, but in the mean-time, you might want to consider a hose clamp:

alt text

Available (via google) from some homebrew stores, or any hardware store. http://www.bittercreekhomebrew.com/Small-Hose-Clamp-pr-289.html

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I've always had problems with air bleeding in between hose and racking cane. Nice way to get oxidation. I used to always wrap electrical tape around it tight - but that's a PITA. I then tried a standard hose-clamp like the one above and couldn't get a good seal.

I'm now going to try one of these little guys

http://www.amazon.com/Snapper-Ratchet-Closure-Nominal-351--394/dp/B0015HOOSQ

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Good idea. I was thinking a zip-tie would also work –  Joe Philllips Dec 4 '10 at 2:15
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It's very difficult to get a good seal with certain types of hose. A hose clamp is best combined with a hose barb, and softer plastics like vinyl will seal better than plastics like polyethylene. –  Tristan Dec 7 '10 at 3:50
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