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Old 12-29-2011, 03:33 PM   #21
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Quick disconnect in this case is referring to cornelius keg disconnects. These connect cornelius style kegs to gas and liquid tubing. There is a small oring inside of each one of these. They are easy to lose, usually when you're cleaning the quick disconnect, so it's nice to have extras of these on hand.



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Old 12-29-2011, 05:50 PM   #22
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Thanks. Now, I understand.

Do you think one of these O-Rings (039K18 ($6.11/100) can be the reason I have a CO2 leak in my system. I will replace the gas o-ring.

I was thinking of this test. First, turn the gas on from the regulator to the grey ball lock connection, then put the connection in water, looking for bubbles. Also test the tank and regulator connections for leaking. If no leaks are found, replace that O-Ring for the internal quick disconnect.

My beer side and the lid o-rings appear to be OK.

Is there any gauge available to test to see if a pressurized empty cornelius keg is maintaing pressure over a period of time. This is my first encounter with a CO2 going empty real fast.



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Old 12-29-2011, 06:32 PM   #23
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The internal QD oring is, probably, not the source of the leak. That's just my gut feeling. You can test that easily by spraying some soapy water or star san onto the top of the QD, no bubbles, no leak. I say it's probably not, because the force of the top of the QD screwed down on the oring, should be plenty to keep it sealed. That oring would

I'd spray everything you can down first and check for bubbles.

One pesky leak that's difficult to find is the gas post oring. I've lost a lot of CO2 because of this oring. It's difficult to test because you cannot spray soapy water on that oring while it's working. The QD is covering it up. I replace these liberally.

I use a technique I've dubbed the "pressure gauge method" of testing for leaks. Described on this page Homebrew Finds: Tips It's tip 6. It does not require any additional equipment and can be a good indicator of a leak. Check it out.

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Old 12-30-2011, 01:24 AM   #24
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Default Thanks for Homebrew Finds

Along with the other good information you have provided, I have checked out all the tips on Homebrew Finds, a really good find. Thanks.

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Old 12-30-2011, 02:01 AM   #25
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+1 on the tips, useful to have.

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Old 12-31-2011, 10:24 PM   #26
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Anyone know the part # for March Pump impeller o-ring?

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Old 12-31-2011, 10:38 PM   #27
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Quote:
Originally Posted by Sacdan View Post
Anyone know the part # for March Pump impeller o-ring?
9396K116

Michael
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Old 12-31-2011, 11:10 PM   #28
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Thanks!

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Old 01-04-2012, 02:47 AM   #29
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this is extremely helpful! If anyone knows, what is a ballpark shipping rate for ordering a set of each?

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Old 01-04-2012, 04:01 AM   #30
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Default McMaster-Carr Shipping Charges

For my recent order (12/21) for O-Rings of $45.43, the shipping was $4.60. I live in Ohio and also pay sales tax. They may only ship UPS. As others have said, they ship FAST. A few years ago, I used Customer Pick-up for some vales and noticed a UPS tailer was connected to the shipping area.

For that order, I only paid sales tax and was told the total amount of the order when I placed it online. This was my first shipped order; I think the cost is based on weight and distance. Their online ordering system may not have the ability to tell you the shipping amount for small orders.

My guess for O-Rings the shipping would be five or six dollars.



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