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Old 03-18-2013, 04:18 AM   #1
RevBrewer
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Default CFC hose question: Garden hose vs. anything else

I am currently acquiring materials for my first CFC. I have 30 ft. of 3/8" OD soft copper tubing and the fittings I need, but can't decide whether or not to go with the cheaper 5/8" ID garden hose or the much more expensive rubber hose. Has anyone with more experience with actual CFC usage found one type of hose to be better than another? I have seen several CFC builds on YouTube suggesting that regular garden hose is able to withstand the temperature of the water that wort chillers need to be effective. Opinions?

As a noob, I would welcome experienced feedback. Thanks in advance!

On a related note, I've found that the 1/2" x 3/8" reducers I have seem much too big around inside to solder to the 3/8" tubing. There is a good sized gap between the outside of the tubing and the inside of the reducer. Should I just get a smaller terminal reducer (1/2" x 1/4"). or what? Help!

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Old 03-18-2013, 01:38 PM   #2
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I made the same mistake with reducers as you did when building my immersion chiller. You need the 1/4" reducer, the difference is from measuring OD vs ID.

Curious about the answers to your first question, I'm planning to build a CFC and have the same copper tubing ready to go. If it makes any difference I plan to sanitize by running boiling wort through the CFC so think that means a higher temp rating for the garden hose.

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Old 03-18-2013, 01:44 PM   #3
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I would try to use PEX.

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Old 03-18-2013, 02:26 PM   #4
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Quote:
Originally Posted by baulz View Post
I made the same mistake with reducers as you did when building my immersion chiller. You need the 1/4" reducer, the difference is from measuring OD vs ID.

Curious about the answers to your first question, I'm planning to build a CFC and have the same copper tubing ready to go. If it makes any difference I plan to sanitize by running boiling wort through the CFC so think that means a higher temp rating for the garden hose.
Thanks, baulz, yep I got the 1/4" reducers today and after filing down the stops inside them, they juuuust slide onto my tubing! WOOT! Now all I need is the hose.

Bettersense, thanks for your suggestion! I've seen PEX tubing in the stores. What makes it a better choice?
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Old 03-18-2013, 02:26 PM   #5
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If you have a junk garden hose then by all means try it. But if you are buying new you might as well hot water hose. A 25' hose is all of $22. Link: http://amzn.to/ZURfFC

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Old 03-18-2013, 03:47 PM   #6
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Garden hose is thermoset and will eventually crack and deteriorate with age. PEX won't, in theory. It's also cheap.

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Old 03-18-2013, 05:11 PM   #7
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PEX is certainly good to high temps. How are you attaching PEX to the copper? What's the bend radius?

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Old 03-19-2013, 01:25 AM   #8
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Go to the local auto part store. 5/8 heater hose is rated for pressure and temps over 250. It's around $1 a foot.

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Old 03-19-2013, 01:33 AM   #9
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If I could build my CFC over again, I'd use a hose rated for hot water. I don't like the smell of burning plastic when I'm running boiling hot wort through the chiller to sterilize it. One of these days it's gonna spring a leak on me.

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Old 03-19-2013, 02:07 AM   #10
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Yea, I used 3/4" automotive heater hose (1/2" copper CFC). It was pretty affordable ~1.20/ft?

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