eBay Air Tank question

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ztirffritz

ztirffritz

Member
May 19, 2015
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WA, United States
I found this tank on eBay: http://www.ebay.com/itm/Paintball-PCP-AirRifle-MROD-Refill-PASSED-HYDRO-06-15-SCBA-Tank-Steel-MSA-UN1002/201369945049?_trksid=p2047675.c100005.m1851&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D1%26asc%3D20131003132420%26meid%3Da82936202b6a4123969b631555f73480%26pid%3D100005%26rk%3D1%26rkt%3D6%26sd%3D271781045713&rt=nc#viTabs_0

I'm curious about this because something doesn't add up. He lists the pressure as 2310 PSIG. I don't know what PSIG stands for, but Google says that it equals 170bar. 170bar equals about 2500 PSI. He shows the tank connected to a Marauder. Why would you hook up a 2500psi tank to a Marauder? You'd have to refill after every other shot for a .25cal, maybe every 4-5 shots if its a .177. Is there something I don't know or is this guy trying to scam everyone? 

I'm trying to learn about tanks so that I can find a good deal. Seems that there are quite a few people selling old unfillable tanks that are probably functionally fine, but no one will fill them.
 
some scuba tanks are rated at +10%, but usually only for the 1st 5 years. after that you lose the +10%. I had several for scuba that with the + filled to 2500 psi after the 1st hydro (5 years) I lost the extra. I would suggest a steel (same volume tanks when you compare, and the steel is lighter-yes it is). high pressure in 100 cf. I have this tank and it gives me a lot of shooting air before it needs to be topped off. the tank on ebay is a walking around tank.
 
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"ztirffritz"I need to get something bigger than 88ci. I don't really care about the weight. I won't be carting it around with me, but I don't want to pay $750 for it either.
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That 88 ci 4500 psi tank will hold a lot more air than the 2500 psi steel tank. There are a lot of tanks within DOT 15 year life cycle you can find on Ebay.

http://www.ebay.com/itm/371107005440?_trksid=p2060353.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT

http://www.ebay.com/itm/231289512584?_trksid=p2060353.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT

 
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If I were to purchase one of the tanks you linked to, what do I need to purchase to use it with a Marauder? I'm not a plumber, so assume that I'm an ignorant dolt regarding threads, hoses, gauges, etc. I know plastics and plastics manufacturing. I don't want to kill myself with a SCBA tank. I'm assuming that there are adapters and regulators that are needed to make this usable. Most firefighters don't have 4500psi lungs.
 
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"ztirffritz"With whom would one speak about hydro testing the tank?
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You can call a dive shop near you. Problem with them are they send them out and put a charge on top of that charge. Or you can call a Fire Department and ask the person who services their tanks where to take them. I live in Metro Atlanta and I have 3 large 60 minute tanks. The fire safety company charged me $29 per tank for hydro and fill. After this I pay $12 per fill. But I was able to find a Fire Department that fill my tanks for free. You just have to do a little leg work because a lot of fire departments don't want to do it. I also found a paintball shop that's closer to me that fill them for $3 but I found I get more water in my tanks from the paintball shop so been driving to the Fire Dept for fills lately.
 
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Make sure you get a microbore hose. I don't think the Paintballsky 34″ fill whip is microbore.

It will save you some air when you have to bleed it. If you have a hand pump, microbore is a must. I have the longer Ninja one below. 

http://www.amazon.com/Air-Venturi-PY-A-4119-Microbore-Hose/dp/B00G5CCA4Q/ref=sr_1_sc_1?ie=UTF8&qid=1435090406
http://www.amazon.com/Ninja-Paintball-Microbore-Fill-Extension/dp/B00IN6I26W/ref=sr_1_sc_2?ie=UTF8&qid=1435090406

I was quoted north of $100 for the JB version and although the fittings look nice, it's double the cost of the one above.

 
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Here's what you have to consider about these tanks. There a very specialized type of item. I can't imagine that there are more than a handful of places making them, probably 2 or 3 at most. That means that a bunch come from Luxfer, and 1 or 2 other companies. There really isn't that much difference in the quality of the tanks. Maybe the fittings and gauges are where the quality differences show up. I don't doubt that Joe's tanks are high quality and he knows what he's doing. But if I can put together a tank that's of the same quality or close enough for 1/5 the cost, I'm going to save that money. The tank I'm putting together might come out to about $300 with all the bells and whistles, maybe $200 if I keep it simple. That's $550 less than Joe wants, or $450 less than AirHog, for nearly the same thing. The difference is that Joe's stuff is all brand new, and ready to go out of the box. I need to put it together on my own and do the leg work to get it re-certified. If I had gobs of money, I'd probably buy from Joe just for the simplicity. I don't have gobs of money, so I'll figure it out on my own.
 
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"ztirffritz"Here's what you have to consider about these tanks. There a very specialized type of item. I can't imagine that there are more than a handful of places making them, probably 2 or 3 at most. That means that a bunch come from Luxfer, and 1 or 2 other companies. There really isn't that much difference in the quality of the tanks. Maybe the fittings and gauges are where the quality differences show up. I don't doubt that Joe's tanks are high quality and he knows what he's doing. But if I can put together a tank that's of the same quality or close enough for 1/5 the cost, I'm going to save that money. The tank I'm putting together might come out to about $300 with all the bells and whistles, maybe $200 if I keep it simple. That's $550 less than Joe wants, or $450 less than AirHog, for nearly the same thing. The difference is that Joe's stuff is all brand new, and ready to go out of the box. I need to put it together on my own and do the leg work to get it re-certified. If I had gobs of money, I'd probably buy from Joe just for the simplicity. I don't have gobs of money, so I'll figure it out on my own.
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Luxfer makes most of the carbon fiber tanks out there. I got my entire setup including a buddy bottle for less than $600. I also have an extra fill assembly so I can cascade my tanks down to about 2500 psi each before I need to fill. I didn't get everything at the same time.


 
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