Ss Brewing Technologies Giveaway!

Home Brew Forums > Home Brewing Beer > Equipment/Sanitation > CO2 refill time?
Reply
 
LinkBack Thread Tools
Old 08-22-2008, 12:29 AM   #1
Yunus
HBT_SUPPORTER.png
Feedback Score: 0 reviews
Recipes 
 
Join Date: Apr 2008
Location: Frederick, MD
Posts: 555
Liked 2 Times on 2 Posts

Default CO2 refill time?

I have a 20# tank that currently has about 500 psi on it and I have 2 batches that will be ready to keg in the next 2 weeks. I usually force carbonate my brew. Will this be enough or should I refill now? When you do all usually fill, I feel like I'm wasting money if I fill early but don't want to run out either.

__________________
Yunus is offline
 
Reply With Quote Quick reply to this message
Old 08-22-2008, 12:31 AM   #2
BigKahuna
Senior Member
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
 
BigKahuna's Avatar
Recipes 
 
Join Date: Feb 2008
Location: Eastern Colorado
Posts: 5,942
Liked 48 Times on 41 Posts
Likes Given: 6

Default

What Temp is your tank?
Pressure gage is NOT an indication of how much is left in it.

If it's COLD, 500 is only a little low, but if it's out side of your cooler....you need gas PRONTO!

__________________
Seriously. I'm here for BEER
It's Not The Size Of Your Rig That Counts....It's How Often You Use It.
BigKahuna is offline
 
Reply With Quote Quick reply to this message
Old 08-22-2008, 11:20 AM   #3
Yunus
HBT_SUPPORTER.png
Feedback Score: 0 reviews
Recipes 
 
Join Date: Apr 2008
Location: Frederick, MD
Posts: 555
Liked 2 Times on 2 Posts

Default

I leave the tank in the fridge so its quite cold.

__________________
Yunus is offline
 
Reply With Quote Quick reply to this message
Old 08-22-2008, 11:28 AM   #4
Loweface
Feedback Score: 0 reviews
Recipes 
 
Join Date: Sep 2007
Location: Limerick, Ireland
Posts: 1,042
Liked 6 Times on 6 Posts

Default

If you can, weigh the tank. There should be a tare weight stamped on it telling you the weight of the empty tank. Take that away and you've got the amount of gas left...

__________________
Quote:
Originally Posted by Me
In the process of buying a bar... One drink at a time...
Quote:
Originally Posted by chortly View Post
...homebrew contains more satisfactrons per serving, so you don't have to drink as much as you would a commercial beer to get to your satisfactron saturation.
Loweface is offline
 
Reply With Quote Quick reply to this message
Old 08-22-2008, 01:49 PM   #5
david_42
Feedback Score: 0 reviews
 
david_42's Avatar
Recipes 
 
Join Date: Oct 2005
Location: Willamina & Oak Grove, Oregon, USA
Posts: 25,651
Liked 134 Times on 127 Posts

Default

A #20 tank at 500 psi, in a fridge, still has enough gas to carbonate a couple cornies. Once it gets below 300 psi, you've on vapors.

__________________

Remember one unassailable statistic, as explained by the late, great George Carlin: "Just think of how stupid the average person is, and then realize half of them are even stupider!"

"I would like to die on Mars, just not on impact." Elon Musk

david_42 is offline
 
Reply With Quote Quick reply to this message
Old 08-22-2008, 05:05 PM   #6
johnsma22
Feedback Score: 0 reviews
 
johnsma22's Avatar
Recipes 
 
Join Date: Jun 2006
Location: Taunton, MA
Posts: 1,892
Liked 32 Times on 26 Posts

Default

CO2 in a liquid/vapor state has a direct pressure/temperature relationship, as can be seen in the chart below. The pressure will stay the same, at a given temperature, until all the liquid has been vaporized. Once only vapor exists, the pressure in the tank will drop rapidly. As the others have stated, the only way to know for sure how much liquid CO2 is left in the tank is to weigh the tank, and subtract the tare weight that's stamped on the side of the tank.

__________________
Cheers,
John
johnsma22 is offline
 
Reply With Quote Quick reply to this message
Reply



Quick Reply
Message:
Options
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Co2 Refill - NE CT / SE MA kman540 Bottling/Kegging 8 03-09-2014 09:55 PM
Refill a Sanke? NoisufnoC Bottling/Kegging 15 04-11-2009 01:13 AM
Time to bottle and refill the carboy! ? sleepystevenson Cider Forum 4 11-14-2008 08:04 PM
C02 refill survey BeerCanuck Bottling/Kegging 19 11-23-2007 12:30 PM
Should I refill my CO2 tank rjester Bottling/Kegging 12 06-27-2007 01:10 PM