O/A cylinder sizes?

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I just bought my first O/A outfit: a Victor Super Range.  I will mostly be welding .065" to .095" tubing, but occasionally thicker material.  I'm not doing this for a living, but am a weekend weldor.  What size tanks do I need?  Is there a cost advantage to having larger tanks?  Thanks,Forrest
Reply:Although the larger tanks cost more to purchase than the small ones the difference in the cost of the fill is small.  I'd started out with a small 20 CF bottle for my occasional use MIG.  When my neighbor gave me a couple of old ~155 CF bottles of C25 and Argon I saw the light.  After I'd used 'em up and paid the retest fee when I exchanged them (they were waaaay out of date) the difference in refilling the 155 vs the 20 wasn't much at all.  Another good thing is that your trips for refills will be less frequent.Of course it's much easier to tote around a smaller bottle but a good welding cart (a nice project) reduces that issue.TinkerCentury 135GS, ThermalArc 250GTS
Reply:I always used the bigger cylinders. I bought the welding cart from harbourfreight (http://www.harborfreight.com/cpi/cta...emnumber=43615) and use it to haul around my O/A setup. Havent had any problems yet....axehind
Reply:I agree with tinker.  The larger bottles are much more worth your money.  Ive often found that the acetylene can be a bit smaller than the oxygen as atleast with cutting you tend to use the O2 up a lot faster than the fuel.  Its just a thought.  Good luckCHRIS
Reply:i have a 300lb act. tank and a 250 oxy and a 80 oxy haha yea those are some damn big tanks but i never have to get a refill for about eh 10 years or more haha. they all came free and filled up when i bought my whole set from this old timer
Reply:Thanks for the advice.