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Old 07-31-2008, 05:01 PM   #1
BrothersTrout
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Default Beer/Gas Line Question

I'm getting the parts for my keezer today, sans beer and gas line. The fittings on the shank for the beer line and my keg connectors are 1/4", and the gas fittings on the manifold and keg are 5/16". Now I'm reading that 1/4 is too big, and I should have gone with 3/16 - crap. Oh well, too late. So what should I do, increase the length of the line? How much, 10' instead of the 6-7'?

Also, I'm getting my lines at Lowes. Yeah, yeah, yeah, I know someone asked about that exact thing a year ago and people freaked. But their 1/4" ID vinyl tubing is food grade (http://www.lowes.com/lowes/lkn?actio...E10&lpage=none), so I'm not going to sweat it. Am I really going to regret this?

Thanks!

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Old 07-31-2008, 05:08 PM   #2
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Not sure on your diameter problem but I'd buy real beer line if I were you. I doubt the Lowes tubing is thick walled and I've heard of people having a vinyl taste when using that tubing.

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Old 07-31-2008, 05:19 PM   #3
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I've heard people mention the "thick-walled" thing - what is that about, just holding up to the pressure? Because the tubing at Lowes is said to withstand up to 55 PSI (way more than I'd ask of it)?

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Old 07-31-2008, 05:37 PM   #4
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http://hbd.org/clubs/franklin/public...s/balance.html
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Old 07-31-2008, 05:40 PM   #5
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Use the balancing equations. The vinyl tubing will be fine.

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Old 07-31-2008, 06:36 PM   #6
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Boil a cup of water in the microwave
Hold the end of the 3/16" tubing in the hot water for 30 seconds
Stretch the end over the hosebarbs
Clamp

This will work for the 1/4" barb on the shank. It will probably work for the 5/16. If the 5/16 is too much find or build a reducer. Find reducers like on this page http://www.plumbingsupply.com/barb.html (A little ways down the page) or build one with a short piece of 3/16" copper or stainless tubing


Code:
         ////C//////////////////       5/16" hose
/////////////L/////                    3/16" hose
             A                         Tube Inside
/////////////M/////
         ////P//////////////////
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Old 07-31-2008, 06:56 PM   #7
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Quote:
Originally Posted by BrothersTrout View Post
I've heard people mention the "thick-walled" thing - what is that about, just holding up to the pressure? Because the tubing at Lowes is said to withstand up to 55 PSI (way more than I'd ask of it)?
No, it's not just about the ability to hold pressure. It's about the thick walled tubing's ability to hold it's shape consistently down its entire length while under pressure. Home improvement store tubing will not hold its shape, even though it's rated to hold a certain pressure. Thick walled beverage tubing also has a smooth bore that is designed to help the CO2 stay in solution by reducing turbulence during the pour.
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Old 07-31-2008, 07:20 PM   #8
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For beer line I love the LLDPE 3/16 tubing from McMaster

www.McMaster.com part number 5181K42

Now it is not easy stuff to work with, when I'm putting barbs in it I usually have a blowtorch nearby to heat it up to stretch the tubing over the 1/4" barbs (even then it is not very easy).

The great thing about this stuff is that I have no off flavors after beer sits in it for weeks on end. It also helps that it is 15 cents a foot, being smaller diameter it will also help in my next step of running cooled lines upstairs.


EDIT: I use this stuff and LLDPE is food safe, but the tubing from McMaster is not specifically labeled as food safe and you are supposed to use compression fittings with it not barbs (like I did) the inside also may not be as smooth as beer line (seems to be though) Works for me but I suggest you research as well and test some out before buying tons of it for your system

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Old 07-31-2008, 07:30 PM   #9
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Quote:
Originally Posted by conpewter View Post
For beer line I love the LLDPE 3/16 tubing from McMaster

www.McMaster.com part number 5181K42

Now it is not easy stuff to work with, when I'm putting barbs in it I usually have a blowtorch nearby to heat it up to stretch the tubing over the 1/4" barbs (even then it is not very easy).

The great thing about this stuff is that I have no off flavors after beer sits in it for weeks on end. It also helps that it is 15 cents a foot, being smaller diameter it will also help in my next step of running cooled lines upstairs.
That's pretty cool stuff! It wouldn't work in my application because of the relatively huge 2.5' bend radius required so that it won't kink. I keep my excess tubing coiled up in the back of my kegerator. The 2.5' bend radius would make some huge coils, LOL!
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Old 07-31-2008, 07:38 PM   #10
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If you use 1/4" ID, you'll need like 18 feet per line. Just order the correct 3/16th line.

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