co2 tank question

[lachrimae]

I just got a new 5lb co2 tank (package deal with Korralin Calcium Reactor) and took it up to the local homebrew store to get it filled.

This place charges $2 per lb. and the guy came back with a total of $3.25

I asked why the price was so low &, if memory serves, he said:

"You see how the bottle is kind of warm from sitting in your car? Well, it would only take 1 1/2 lbs but it's still 1000 gallons. If you bring in the tank chilled we'll be able to fit a little more in there"

I understand why a cold tank could compress more co2 but is it odd for a 5lb tank to take only 1 1/2 lbs when approx. 90 degrees?

When he says "it's still 1000 gallons", does that mean that a 5lb refill would also offer only 1000 gallons?

I've done homebrew but I bottled my own & never messed with co2 and this is my 1st calcium reactor...

Please offer insight!

Thanks,

Mark

 

[Julio]

I had a 5 gallon tank that i bought back in Oct and the thing just emptied itself, they keep the tank outdoors here in NYC so in your case i am pretty sure that is the case.