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Old 09-14-2009, 07:17 PM   #1
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Default How do I check the quality of a used co2 tank? ($5 co2 tank offer inside)

So on CL there is a listing for a bunch of co2 tanks, $5 each...

What do I look for to make sure they aren't complete garbage?

large CO2 tanks

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Old 09-14-2009, 07:20 PM   #2
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if they hold pressure and have a current hydro date, they should be good to go!

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Old 09-14-2009, 07:26 PM   #3
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Originally Posted by Arkador View Post
if they hold pressure and have a current hydro date, they should be good to go!
Whats a hydro date?

Also, is there a difference between tanks for co2 and nitrogen?
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Old 09-14-2009, 07:38 PM   #4
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Quote:
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Whats a hydro date?

Also, is there a difference between tanks for co2 and nitrogen?
Pressure tanks have to have a hydrostatic pressure test periodically (every 10-12 years I think?).
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Old 09-14-2009, 07:43 PM   #5
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Pressure tanks have to have a hydrostatic pressure test periodically (every 10-12 years I think?).
Thanks! I googled it too, I'll hopefully be able to look at them and pick up two or three with newer hydro dates this week.

I also found a 5 foot redbull display fridge on CL, too bad its $225! haha
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Old 09-14-2009, 07:56 PM   #6
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I'm thinking the hydro test is every 5 years, but even if some of the tanks are out of date (stamped on side) a new test is about $15 so that's still a reasonable deal.

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Old 09-14-2009, 07:57 PM   #7
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hmmm.. maybe just buy one and take it to a place that exchanges instead of fills. I guess it's kinda shady, but they'll test it before they fill it anyway.

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Old 09-14-2009, 09:03 PM   #8
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Damn those look old, I'd go with the old swap-the-tank place to get a new one and then go else where for refills.

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Old 09-14-2009, 09:23 PM   #9
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the guy at the gas shop doesn't even look at the tank when I bring it to exchange they could care less. Its part of the cost of doing business they aren't going to red flag you because they have another tank and customer.

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Old 09-14-2009, 11:25 PM   #10
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Well, they are all gone anyways. I expect to see more old co2 tanks popping up on craigslist for more than $5 though

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