Corny orings and temps

[digdan]

I built a four tap system in my friends party house. I use 20lb CO2 system with splits and everything works well...

Untill I put it into the fridge. For what ever reason there is no leak of CO2 out side of the fridge. Once I put everything into the fridge the CO2 will slowly drain.

Is there a chance the oring is shrinking and leaking co2?

damn... typing oring makes me hungry for onion rings...

 

[DAAB]

The colder a liquid is the faster it absorbs co2 so its quite possible you have no leak at all and the co2 has become absorbed into the beer, you may just need to add more co2.

My kegs hold pressure even in freezing conditions so temperature shouldnt make a huge difference unless a particular seal is already in poor condition. Obviously rubber hardens and metal parts contract the colder they get.

To check for leaks make up a solution of washing up liquid and water without causing it to foam (a good quirt into 2 or three tablespoons of water) increase pressure in the keg above your usual setting 1.5-2X should do and apply the solution to the area around the lid, the posts and to the releif valve, infact any where ever there is a joint, and if there is a leak it will show up by the formation of bubbles.

 

[user 574]

Using keg lube on your rubber seals as well?

 

[Jester]

Using keg lube on your rubber seals as well?

Where can you get this keg lube..?? THanks.

 

[user 574]

Where can you get this keg lube..?? THanks.

Pretty sure you can get it from all HBS stores. It's cheap and goes a long way. Some samples:

http://www.williamsbrewing.com/KEG_LUBE_P479.cfm

http://beer-wine-brewing.com/catalog/product_info.php?products_id=536

 

[Janx]

mmm...onion rings...

 

[AHammer16]

MMM... Keg lube!

 

[david_42]

Your most likely source of leaks are the joints with dissimilar metals. A common place is the tank/ regulator connection (check the gasket), but if you have any connections of brass to steel they are suspect. I had the same problem when I set my kegger up. It turned out to be the connection from the gas line into the manifold.

It's cold enough in Boise you could just do a leak test outside, except the soap solution might freeze.