Home Brew Forums > Home Brewing Beer > Beginners Beer Brewing Forum > First time kegging - any last minute tips?
Reply
 
Thread Tools
Old 08-17-2012, 04:47 PM   #21
Tiredboy
Feedback Score: 0 reviews
Recipes 
 
Join Date: Oct 2011
Location: Kingston, Jamaica
Posts: 200
Liked 3 Times on 3 Posts

Default

Thanks.

It's a 20lb cylinder, looked a bit grubby but nothing untoward and showed almost full after sitting around for a week. I was fairly liberal with gas use when I was running through the process and cleaning/sanitising so was probably slightly lower than 100% to when it went into the keezer (around 1000 seems about right but I'm not sure, I'm not used to all the measurements as I'm more used to scuba tanks where 240bar means it's full). From memory, this morning it was around 500psi (I think) so that seems about right.

Means I can stop worrying about it (at least for now). Thanks for the link. Not quite sure what it means but if I read it correctly, partial pressure at 40F should be roughly half than at 80F which seems about right (It was probably filled at around 80-90F and keezer is arounf 40F).

I'll check the pressure when I get in. If it has dropped I'll check everything for leaks (although iif its been leaking all day, chances are the tank will be empty by the time I get home). If not I'll assume all is well.


Tiredboy is offline
 
Reply With Quote
Old 08-17-2012, 04:59 PM   #22
zachattack
Feedback Score: 0 reviews
Recipes 
 
Join Date: Mar 2012
Location: , MA
Posts: 2,667
Liked 268 Times on 230 Posts
Likes Given: 157

Default

Again, the gauge doesn't show if it's full, the only way to know is to weigh it. Your scuba tank is full of compressed gas, this is full of a liquid that boils off to maintain pressure. As long as there's liquid in the cylinder, you're only reading the vapor pressure of CO2 which is highly temperature dependent. Just try lifting up the tank, ft it's still heavy you're fine.

To use that chart: 500 psig = 515 psia = 3551 kpa. Scroll down the second column (vapor pressure in kpa) and you'll see that's somewhere in the neighborhood of 1 deg C, which is 34 deg F. Are you sure your fridge is actually at 40? Are you sure the gauge is actually at 500? Either way leaking 20 pounds of CO2 out in one day would mean you have a pretty big leak, it should be noticeable.


zachattack is offline
 
Reply With Quote
Old 08-20-2012, 03:18 PM   #23
Tiredboy
Feedback Score: 0 reviews
Recipes 
 
Join Date: Oct 2011
Location: Kingston, Jamaica
Posts: 200
Liked 3 Times on 3 Posts

Default

Thanks for all the help. I got home on Friday and the guage was reading the same - no leakage. I also couldn't control myself and tried the beer on friday night after 24 hours at 30psi. It tasted great although (a little) undercarbed. Didn't stop me having a couple of pints though! Put the pressure back up to 30psi after serving and by saturday lunchtime (~36-40 hours in) it was great. It's now sitting at 12psi. Overall, very happy with my first kegging.
Tiredboy is offline
 
Reply With Quote
Old 08-20-2012, 04:23 PM   #24
zachattack
Feedback Score: 0 reviews
Recipes 
 
Join Date: Mar 2012
Location: , MA
Posts: 2,667
Liked 268 Times on 230 Posts
Likes Given: 157

Default

congrats!
zachattack is offline
 
Reply With Quote
Reply


Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
First time brewer. I could use some tips! HooSteenTheGonz Beginners Beer Brewing Forum 29 06-11-2012 01:36 AM
Any tips for first time bottling?? Vorsicht709 Beginners Beer Brewing Forum 13 02-02-2012 04:38 PM
First bottling tonight - any last minute advice/tips Tiredboy Beginners Beer Brewing Forum 22 12-08-2011 04:27 PM
Bottling 1st batch tomorrow... any last minute tips? HB92649 Beginners Beer Brewing Forum 37 06-24-2011 02:30 PM
First Time Brewing tomorrow - last minute questions Verio Beginners Beer Brewing Forum 12 11-10-2010 02:09 AM


Forum Jump

Newest Threads

LATEST SPONSOR DEALS