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co2 hydro test?


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#1 SPmdslush

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Posted 19 May 2009 - 02:46 PM

so do co2 tanks need to be hydro tested and if so where can i find the date on the bottle that says when it needs to be tested i got the co2 tank a while ago from my uncle so i dont know how old it actually is

o and i have HPA i will just have to use co2 on my pump if i lend out my epiphany
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#2 Christopher

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Posted 19 May 2009 - 02:51 PM

so do co2 tanks need to be hydro tested and if so where can i find the date on the bottle that says when it needs to be tested i got the co2 tank a while ago from my uncle so i dont know how old it actually is

o and i have HPA i will just have to use co2 on my pump if i lend out my epiphany


Every five years the tank needs to be re-tested. It costs about $20, so you're usually better off buying a new CO2 tank than recycling you're new one. It costs about the same either way, but if for some weird reason you're tank fails hydro.... well you need to then shell out another $20 for a new tank anyway.

There are a few sizes (9oz, 7oz, 3.5oz) that fall under the 2" rule, and don't need to be hydrotested .

#3 pbc0dy

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Posted 19 May 2009 - 02:54 PM

i think the date should be on the top of the tank

#4 brycelarson

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Posted 19 May 2009 - 02:55 PM

there's going to be a date something like this:

TC DOT-3AL 05A06

if it has a TC that means it's approved for Canada

the DOT-3AL indicates that it's approved in the us - and what type of tank it is.

the 05A06 means that the tank was made in the month 05 (May in this case) of the year 06 (2006). you just add 5 years to that and that's when ti needs to be re-hydroed.

there is a rule in the US that says that tanks less than 2" in diameter and 2' in length don't need to be retested. so that's the 3.5 oz, the 4 oz and some 9oz tanks as well as 13 and 21 ci HPA tanks. If you're unsure if yours is exempt - then do some web research. The equivalent rule in
Canada is a 1l rule - where tanks under a volume of 1 liter don't need to be retested.

as Christopher said - CO2 tanks aren't really worth doing - they're pretty much just 5 year disposable products.

#5 SPmdslush

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Posted 19 May 2009 - 03:00 PM

alright thanks guys
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