New Giveaway - Wort Monster Conical Fermenter!

Home Brew Forums > Home Brewing Beer > Bottling/Kegging > Leaky inline CO2 quick disconnects




Reply
 
LinkBack Thread Tools Display Modes
Old 05-05-2010, 02:55 PM   #1
724b
Registered User
Feedback Score: 0 reviews
Recipes 
 
Join Date: Oct 2007
Posts: 219
Liked 6 Times on 6 Posts
Likes Given: 5

Default Leaky inline CO2 quick disconnects

I've got three pairs of these installed in my kegerator-
http://www.mcmaster.com/#5923k43/=6yhaob
http://www.mcmaster.com/#5923k73/=6yhaxa

They are manufacturerd by Colder Products and they are brand new.

With the co2 tank off, I've noticed a slow drop in pressure. I've sprayed stuff down and tested for obvious leaks, there aren't any.

I didn't really want to soak the qd's down or submerse them so I secured a plastic bag around one with a rubber band. I squeezed the excess air out. Within a few hours the bag started to visually inflate. It's not blowing up like a balloon, but I can tell a small amount of gas is leaking.

Is this normal? Do all qd's leak just a bit? Or should these be absolutely leak free?

Thanks for your help



__________________
724b is offline
 
Reply With Quote Quick reply to this message
Old 05-05-2010, 05:32 PM   #2
whale
Feedback Score: 0 reviews
Recipes 
 
Join Date: Mar 2010
Location: BC
Posts: 58
Liked 1 Times on 1 Posts

Default

Im not exactly sure but is it that you are using it on the gas side?? are you sure they are good with gas? you may just need to change the o ring.

how are you using there?? I just can't see a place for them...



__________________
whale is offline
 
Reply With Quote Quick reply to this message
Old 05-05-2010, 06:03 PM   #3
jds
Feedback Score: 0 reviews
 
jds's Avatar
Recipes 
 
Join Date: Oct 2007
Location: Littleton, CO
Posts: 1,947
Liked 17 Times on 14 Posts

Default

I can't speak to using the acetal QD's with gas. When I built my kegerator, I used compressed air QD's from Home Depot. They don't leak a bit.

Whale: QD's are useful for when you want to use your gas bottle for something else, like transferring beer or pushing cleaner / sanitizer through kegs.

__________________
jds is offline
 
Reply With Quote Quick reply to this message
Old 05-05-2010, 06:52 PM   #4
bja
Feedback Score: 0 reviews
Recipes 
 
Join Date: Nov 2007
Location: Pittsburgh
Posts: 1,676
Liked 72 Times on 60 Posts

Default

I've had those exact same disconnects for over a year now and I've never noticed them leaking.

__________________
bja is offline
 
Reply With Quote Quick reply to this message
Old 05-06-2010, 03:09 PM   #5
shortyjacobs
Feedback Score: 0 reviews
Recipes 
 
Join Date: Aug 2009
Location: Twin Cities, MN
Posts: 2,511
Liked 28 Times on 28 Posts
Likes Given: 3

Default

My Lowes QDs leak slightly if the hose is being bent to the side, thus causing the male QD to be pushed to one side of the female QD.....I just have to make sure I don't torque my hoses.

Also, the "turning the tank off" test is a very bad one. Your pressure will ALWAYS drop, regardless as to whether or not you have a leak, because with the tank valve closed CO2 can leak from the regs back out past the valve post. CO2 tank valves are rear-seating, so you need to open them fully to ensure no leaks. Here's a pic:

__________________
Itchy Dog Brewery.

(As of 10-24-2011)
Primary - Steppe 112 PA, 2x Monday RyePA
Aging - None :-(
On tap - Big Dog, Apfelwein, Steppe 112 PA

My invisible AG sculpture, with no actual sculpture and a tiny footprint.
My Kegerator goes offroading!
My Coors Home Draft dispenser for boating/beering on the go.
shortyjacobs is offline
 
Reply With Quote Quick reply to this message
Old 05-07-2010, 02:38 PM   #6
724b
Registered User
Feedback Score: 0 reviews
Recipes 
 
Join Date: Oct 2007
Posts: 219
Liked 6 Times on 6 Posts
Likes Given: 5

Default

Interesting. That's the first I've heard of this.

The "turn the tank off method" is all over the Micromatic boards. One of the early promotors of this method is a staff member at Micromatic and an instructor at their dispense institute.

When the lower valve on my regulator is turned off, pressure holds indefinitely. So I can tell you that the leak you're describing is not true for my regulator.

This seems like a very objective way to check for leaks.

Maybe some regulators/tank setups will leak in the off position and some don't?

Quote:
Originally Posted by shortyjacobs View Post
My Lowes QDs leak slightly if the hose is being bent to the side, thus causing the male QD to be pushed to one side of the female QD.....I just have to make sure I don't torque my hoses.

Also, the "turning the tank off" test is a very bad one. Your pressure will ALWAYS drop, regardless as to whether or not you have a leak, because with the tank valve closed CO2 can leak from the regs back out past the valve post. CO2 tank valves are rear-seating, so you need to open them fully to ensure no leaks. Here's a pic:



__________________
724b is offline
 
Reply With Quote Quick reply to this message
Reply


Quick Reply
Message:
Options
Thread Tools
Display Modes


Similar Threads
Thread Thread Starter Forum Replies Last Post
Quick disconnects jim4065 Equipment/Sanitation 18 12-26-2012 03:51 PM
Quick Disconnects... Stile Equipment/Sanitation 8 01-13-2009 02:51 PM
SS Quick Disconnects Ewalk02 Equipment/Sanitation 24 12-18-2008 11:25 AM
anyone tried these quick disconnects? vmpolesov General Techniques 5 03-27-2008 04:01 AM
Leaky Gas Disconnects Matt Bottling/Kegging 3 12-23-2006 06:06 PM