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tehschkott

Posted: Fri Feb 24, 2012 4:21 pm

daywalker Joined: 09 Nov 2007 Posts: 6108 Location: Hatertown

Anyone know where I can pick up a cheap air tank that can be filled at a gas station or somesuch?

Been playing around with tubeless 29er wheels - on some of these you need a big burst of high PSI air to seat the bead on the tire. Though there are lots of uses for a compressor on a bike bench, seems like a little overkill for me - also they're loud, which to be totally honest is a hard sell with the apartment I have.

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caustic meatloaf

Posted: Fri Feb 24, 2012 4:23 pm

Joined: 06 Dec 2010 Posts: 1235537 Location: a hammy melange...

Hmm. What's the budget? I'd say look for a used scuba tank, but compressed air is harder to find easily than compressed CO2 - so I'd say instead to go with a small CO2 tank. You can get 'em refilled at a lot of different places.

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Chip McShoulder

Posted: Fri Feb 24, 2012 4:25 pm

dog licking ice cream cone Joined: 11 Aug 2008 Posts: 3022 Location: Rainbow Road

Have you tried Bed, Bath and Beyond?

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langston

Posted: Fri Feb 24, 2012 4:36 pm

Joined: 25 Jul 2005 Posts: 5547 Location: Columbia City

Chip McShoulder wrote:

Have you tried Bed, Bath and Beyond?
pic of SodaStream

I got one of these for xmas. The refills are more expensive than commercial CO2. Try CompressedWesternGas in Georgetown. They probably sell and refill used tanks.

Also, why not a cheap air compressor? they're only loud when you use them (rarely) and don't run the risk of killing everyone in your building in their sleep.

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Bo Ttorff

Posted: Fri Feb 24, 2012 4:37 pm

GO SEAHAWKS!! 12 for LYFE Joined: 20 Jul 2011 Posts: 3092 Location: King County

WP_000838 by Bo Ttorff, on Flickr

Scott, you can borrow this if it's big enough. it's empty and you'll probably need a regulator. It's a 2.5#er

tehschkott

Posted: Fri Feb 24, 2012 4:45 pm

daywalker Joined: 09 Nov 2007 Posts: 6108 Location: Hatertown

Thanks Bo - I think I'm looking for a little bigger. 2-3 gallons seems to be the minimum on a compressor for doing a single tire.

I think Compressed Western Gas in Georgetown is probably what I'm looking for.

Thanks gang

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tehschkott

Posted: Fri Feb 24, 2012 5:14 pm

daywalker Joined: 09 Nov 2007 Posts: 6108 Location: Hatertown

http://seattle.craigslist.org/see/spo/2869045949.html

Think something like that would work? I don't know anything about air tanks.

2011 Hydro with + rating, current viz and filled with Air, Nitrox ready. Yoke Thermo valve.

Edit: scratch that. For that price I could buy a compressor.

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caustic meatloaf

Posted: Fri Feb 24, 2012 5:35 pm

Joined: 06 Dec 2010 Posts: 1235537 Location: a hammy melange...

tehschkott wrote:

2.5 pounds of compressed CO2 is more than enough to fill a bumch of 29er tires - just sayin'. The pressure on those homebrew tanks is typically 1000PSI, so you'll want to get a regulator for that. Your typical home compressor that's kinda smallish might go to 100PSI, if that.

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tehschkott

Posted: Fri Feb 24, 2012 5:41 pm

daywalker Joined: 09 Nov 2007 Posts: 6108 Location: Hatertown

Ah. The depth of my ignorance on this topic appears to be broader than I realized - which of course is the nature of ignorance I suppose.

Where do you get c02 tanks filled? Same place in Georgetown?

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Chip McShoulder

Posted: Fri Feb 24, 2012 5:46 pm

dog licking ice cream cone Joined: 11 Aug 2008 Posts: 3022 Location: Rainbow Road

tehschkott wrote:

Where do you get c02 tanks filled?

I go to Bed, Bath and Beyond.

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caustic meatloaf

Posted: Fri Feb 24, 2012 5:47 pm

Joined: 06 Dec 2010 Posts: 1235537 Location: a hammy melange...

Any welding shop in town can do it - CO2 is used as a masking gas for welding too. Also, AAA fire and safety in Fremont also can refill the tanks.

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Alex

Posted: Fri Feb 24, 2012 5:48 pm

Joined: 18 May 2006 Posts: 3128 Location: Roosevelt

An air compressor is going to be a lot less hassle in the long run. If I'm around you can ping me and use mine. I don't have a tire inflator on it, but we can probably get one from Amazon cheaply. You can probably find a used compressor for free to $50 on Craigslist and new cheap ones are under $100. The small contractor ones don't take up a lot of room, but they are noisy.

A high pressure tank is also going to require a regulator (scuba first stage regulators get you 150psi air). Scuba tank refills are $10 or more, so it won't take many to pay for a compressor.

Bo Ttorff

Posted: Fri Feb 24, 2012 6:08 pm

GO SEAHAWKS!! 12 for LYFE Joined: 20 Jul 2011 Posts: 3092 Location: King County

I fill Co2 at airgas on airport way in gtown. However they don't fill tanks you just hand in yours and they swap you out with a similar tank of the same size. 10lb tanks are 77 to buy at first then 21 to fill each time.

I think the best investment would be a compressor. You can get a little pancake porter cable on the cheap, and you'd be surprised how often you might use it. Shit Ito might need to sub out some of the work for his burgeoning cat tree business and you could be right there with your compressor and nail gun ready to upholster them shits.

caustic meatloaf

Posted: Fri Feb 24, 2012 7:39 pm

Joined: 06 Dec 2010 Posts: 1235537 Location: a hammy melange...

Jake, if you still wanna get rid of that 2.5lb tank, let me know. I've been looking for a smaller, "traveller" size tank for kegs.

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Bo Ttorff

Posted: Fri Feb 24, 2012 7:58 pm

GO SEAHAWKS!! 12 for LYFE Joined: 20 Jul 2011 Posts: 3092 Location: King County

caustic meatloaf wrote:

Jake, if you still wanna get rid of that 2.5lb tank, let me know. I've been looking for a smaller, "traveller" size tank for kegs.

yours. buy me a beer. I'll bring it to the fhr?

dennyt

Posted: Fri Feb 24, 2012 8:34 pm

rocket mechanic Joined: 02 Aug 2005 Posts: 2708

For maximum cheapness, build your own. 2L soda bottles burst at 120-150psi, and they hold enough volume for one or two tires.

Better yet, fill one of your car tires up to 60ish and use it as a high pressure reservoir. Just build a pump hose with a schrader head on one end and presta on the other.

Or buy an air tank for $25 at Harbor Freight

I'd stick with compressed air. The only reason to go CO2 is the quantity you can fit in a small bottle as a room temperature liquid.

PJ Diddy

Posted: Sat Feb 25, 2012 9:07 am

Joined: 25 Jul 2005 Posts: 567 Location: magnolia

I used my compressor I maxed out the regulator to 110psi and got the thing to seat. lots of water helps. I can bring the compressor over if you would like to borrow it.

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tehschkott

Posted: Sat Feb 25, 2012 2:29 pm

daywalker Joined: 09 Nov 2007 Posts: 6108 Location: Hatertown

you know, I got them to seat last night with c02 cartridges. I'd never used them before, but even the 16gr units were enough to do the duty - 20gr was enough to take a high volume 2.4in 29er tire to 25psi. The 40gr ones were enough to do two tires and fuck up some (I did a lot of fucking up getting my technique down).

Bo if you're into selling that little tank I'll take it. I didn't see it was 2.5 lbs, thought it was 2.5 gallons. That'd be perfect.

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Bo Ttorff

Posted: Sat Feb 25, 2012 2:40 pm

GO SEAHAWKS!! 12 for LYFE Joined: 20 Jul 2011 Posts: 3092 Location: King County

I really have no need for the small bottle it just takes up room in my tiny house. Shut up Joe has expressed interest in the bottle as well. I am willing to part with it for a quality 6 pack of beer, which I feel is reasonable. Obviousely I'm not trying to make money here. The bottle is brand new, never filled. So yeah, I'll bring it to the FHR.

Andrew_Squirrel

Posted: Sat Feb 25, 2012 3:02 pm

Joined: 01 Mar 2010 Posts: 2098 Location: Greenwood

tehschkott wrote:

c02 cartridges

I was going to suggest that but didn't want to sound n00bish since it seemed a little too obvious. That is great that it worked.

caustic meatloaf

Posted: Sat Feb 25, 2012 3:43 pm

Joined: 06 Dec 2010 Posts: 1235537 Location: a hammy melange...

Bo Ttorff wrote:

I really have no need for the small bottle it just takes up room in my tiny house. fondle me gently joe has expressed interest in the bottle as well. I am willing to part with it for a quality 6 pack of beer, which I feel is reasonable. Obviousely I'm not trying to make money here. The bottle is brand new, never filled. So yeah, I'll bring it to the FHR.

I'll give Scott first dibs. but if he backs out, I'll take it.

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tehschkott

Posted: Sat Feb 25, 2012 5:25 pm

daywalker Joined: 09 Nov 2007 Posts: 6108 Location: Hatertown

I'm on it , thanks Bo - and Joe.

DO NOT BRING IT TO THE RACE. I've got like 10 gallons of crap to carry. I'll swing by your place in the next couple days. We have a complete shit ton of beer this year for FHR so will bring my good beer to you when we settle up. Believe me, there will be no lack of liquor this year.

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Bo Ttorff

Posted: Sat Feb 25, 2012 10:43 pm

GO SEAHAWKS!! 12 for LYFE Joined: 20 Jul 2011 Posts: 3092 Location: King County

tehschkott wrote:

DO NOT BRING IT TO THE RACE.

roger that

Razi

Posted: Sun Feb 26, 2012 3:55 pm

Joined: 16 Dec 2005 Posts: 866 Location: Seattle

I've seen a diving cylinder (scuba tank) used in place of a regular compressed air tank before.

It was kludgy, and the only reason for it is if you already have all the stuff lying around (highly unlikely) or you need the mass:volume advantage that comes with putting 100 cubic feet of air in a cylinder the approximate size of a cornelius keg.

Otherwise. Bad idea for the following reasons:

You will need a first stage regulator, and this adds to your cost and complexity.

Scuba tanks are essentially life support systems and are regulated as such. So even if you sign a notarized document and swear an oath before the great poo-bah himself that states you will only use the tank for surface application (not underwater for any reason), if it is past due on inspections or has failed inspection, there is not a scuba shop in the country that will fill it.
Getting inspections is a pain in the ass. Visual inspection is pretty cheap, but hydro is not.

Scuba tanks, even aluminum ones, are heavy and unwieldy.

Not many places have high-pressure compressors capable of filling a tank to 3400psi. If you go to one of these places, it is possible they will convince you that you should actually use the tank for its intended purpose and before you know it you could be paying several hundred bucks for the privilege of being 60' underwater, in a suit soaked with your own piss, freezing your ass off, wondering what the fuck you are doing down there with an unexploded bomb attached to your back and a bunch of lead weights around your waist.

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Razi

Posted: Sun Feb 26, 2012 6:47 pm

Joined: 16 Dec 2005 Posts: 866 Location: Seattle

Razi wrote:

Scuba tanks are essentially life support systems and are regulated as such.

This pun was NOT intended. Good lord. If only I were so clever.

It is a pretty good pun though, I'll admit. I mean, because air delivery on SCUBA relies on not one but TWO mechanical regulators (three if you include the backup regulator (the octopus)).

Plus all the other legal regulations made by the sorts of regulators who work in large office buildings in Washington DC.

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Bo Ttorff

Posted: Thu Mar 01, 2012 10:10 am

GO SEAHAWKS!! 12 for LYFE Joined: 20 Jul 2011 Posts: 3092 Location: King County

Schkott,

should I bring co2 tank tonight?

Bo Ttorff

Posted: Tue Mar 27, 2012 10:23 am

GO SEAHAWKS!! 12 for LYFE Joined: 20 Jul 2011 Posts: 3092 Location: King County

A good deal for a 6 gallon, 2hp tank.

http://seattle.craigslist.org/kit/tls/2925269515.html

tehschkott

Posted: Tue Mar 27, 2012 4:41 pm

daywalker Joined: 09 Nov 2007 Posts: 6108 Location: Hatertown

Joe, Jakes CO2 tank is all yours. Grabbed a 5gal at Harbor Freight a week ago - forgot to update the thread.

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