How long will a 5lb co2 tank last

Hey folks, just like the title says, how long do CO2 tanks last?? I'ma be growing 3 dwc in a c24 cab. i was thinking about a 5lb tank. How long could i go...

Here I will show you how to connect a 5 pound co2 tank to my SodaStream fizzi machine at home for cheap. First off, I went to my local welding shop to pick u...It works out to something like 1/4 pound of CO2 per volume of carbonation (dispensed) If you carb a beer to 2 volumes and dispense the whole keg, you'll get about 10 kegs out of a 5lb tank. That assumes no leaks, no waste, no purging.depends on the size of the room and what kind of air movement, venthilation, fresh air introduction there is in the room. a 10 lb. tank holds a large concentration of CO2, more than you would think. That level of CO2 in a small room can be dangerous and deadly. I highly doubt that there would be an fatalities unless you purposely sat in that ...Feb 8, 2018 · I have bought this CO2 tank back in 2015 and its still running 24/7. How long it will last .... ? I don't know yet. It will take about 1/2lb of CO2 to dispense a 1/4 barrel keg (7.75 gallons) and about 1/3lb CO2 to dispense a 5 gallon keg (corny keg / sixtel). Refer to the chart below to approximate the number of kegs that can be served from different size CO2 tanks. Keg Size / Style. 20oz Cylinder. 1.5 lb Cylinder. 2.5 lb Cylinder.

The first problem would/might be that airbrush regulators wouldn't be rated to handle the backpressure of a compressed gas tank, which can routinely be in the thousands of PSI. They're designed to be backed by at most a 100PSI air compressor. Second problem is temperature: expanding high pressure gas cools down.Using a high-quality LED light can also help to minimize tank temperature. CO2 and Lack of Nutrients. Ascertain that the CO2 level in the water is within control. Increased CO2 levels would cause the fish to become unwell. When the CO2 level in the water rises, aquascaping likewise grows slowly.The frequency of CO2 tank refills will depend on how often you use the kegerator and the size of the tank. A standard 5-pound CO2 tank can last for several kegs, but it’s important to monitor the pressure gauge and have a spare tank on hand for uninterrupted use. ... How Long Does A 5Lb Co2 Tank Last In A Kegerator. Reviews . …A 20 lb CO2 tank should last about 8-10 hours at 60 psi! I know T-shirt artists who spray all day at 60 psi with one 20 lb tank, so at maybe 20 psi for airbrushing models you should get several more hours than that by far.Are you an avid SodaStream user who loves the convenience of making your own sparkling water at home? If so, you may be aware of the importance of regularly exchanging your SodaStr...It depends on a few factors. If you are using the CO2 only to dispense the beer, not to carbonate it, you may get as many as thirty 5 gallon Cornelius kegs out of one 5 lb. CO2 cylinder. However, most homebrewers are also using CO2 to force carbonate their brew, so this brings it down to around ten 5 gallon Cornelius kegs out of one 5 lb. CO2 ...

I'm thinking due to the 36" length, the 12g allows for much more plants than a typical 10g-ish traditional sized tank, which begins to take it out of "nano" territory. So I'm wondering how long a 5lb tank might typically last on a 12 long? Would you go smaller?My 5lb co2 tank lasts about 4-5 months at about 4-5 bubbles per second so that will give you a rough idea. I figure a 20lb tank would last around 16 months at that bubble rate. Less if you have a higher bubble per second. Again just a rough estimate. You should get at least a year between refills I would think. Maybe less thats a big aquarium.As mentioned, you can pour between 15 and 22 corny kegs with a 5-lb CO2 tank. Corny kegs are five gallons in size and are the most common keg for home brewing. Sixth Barrel. Sixth barrels are slightly larger than corny kegs and are 5.23 gallons big. Sixth barrels get used in homebrewing, microbreweries, and elsewhere.1,231. Reaction score. 26. Location. Stevens Point. Oct 30, 2009. #1. So i just started kegging a couple of weeks ago. I originaly had a single regulator with both …How to Set Up a Draft Beer Regulator to a CO2 Tank. Watch on. Securely attach the regulator to the gas cylinder. Close the regulator's shut-off valve "C". Completely open the gas cylinder valve "A". Slowly turn the regulator adjustment "B" until the low pressure gauge "D" displays the desired pressure.

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5lb will last 6-7months on for about 6-10hours a day at 2-3bps. on a 29gal. I moved up to a 75gal and added a pH controller and it last 6months tops now. And it cost the same to fill up a 5lb-20lb tank so buy as big as you can. Like.Just curious. My first tank lasted a week, so I found the silly leaks and fixed them. But I'm still wondering about how long a 5lb tank "should" last. I have a five gallon corny set up. I understand that different people carbonate to different levels, just looking for a general idea... I usually only get 5-6 (maybe 7) kegs out of it but I always have one on 45 psi fir carbonated water and I go though 2-3 kegs of that. I also force carbonate my beer for 2 days at 45 psi (then let rest unplugged for a day) then hook back up for 8-10psi. I also purge each tank 5-6 times before carbonateing. Filling a 5lb CO2 tank. Thread starter current516; Start date Jun 7, 2006; The friendliest place on the web for anyone with an interest in aquariums or fish keeping! If you have answers, please help by responding to the unanswered posts. See posts with no answers. Jun 7, 2006 #1 C.Apr 20, 2018 ... cannabis #hydroponic_supplies #hydroponic_store #hydroponic_setup Hope you guys enjoy this! If you enjoy this video, please like it and ...

A while back I paid $42 to have a 15 lb tank filled in 2021 at a fire extinguisher supply. I see a message on a group chat that current prices there are $33 for a 5 lb refill and $45 for a 20 lb refill. I think they charge around $25 for certification and it takes a few days. So, I wish I could swap my 5 lb tank for $21.How long will a CO2 Tank Last? ... This means the 20lb. tank should theoretically last 44 days (175/4), while the 5lb. tank will last about 11 days (44/4). These estimates do not take into account plant uptake of CO2, opening doors or curtains, or other opportunities for CO2 to escape and require replenishment.The cylinder should have its tare weight stamped on it, which is the weight of the tank when empty. Subtract this from the current weight and you have the weight of CO2 in the cylinder. The "pounds" rating of a CO2 tank is how many pounds of CO2 they hold. A 5 lb cylinder might have 7.5lb tare weight, and would weigh 7.5lbs when empty, and 12 ...Here are some of the most common sizes of Co2 tanks and Co2 bottles available for home brewing. In brackets are the Co2 tank dimensions to give you an idea of the Co2 cylinder size and whether it will fit in the desired location: 5-pound cylinder (5¼"W x 17½"H) 10-pound cylinder (6⅞"W x 20"H) 20-pound cylinder (8"W x 27½"H)I have bought this CO2 tank back in 2015 and its still running 24/7. How long it will last .... ? I don't know yet.3656 posts · Joined 2007. #2 · Apr 15, 2021. You should get a 5lbs/ 2.2kg co2 tank for an aquarium that size unless you're fine with refilling co2 every week. The 5 lbs tank should last you several months. I have a 20 lbs tank and it should last me a year, Algae happens. Share.Depending on the business, you may need to wait a day or two for refilling so contact the business for further details**. Delta: BC Marine Safety Systems Ltd. 1689 Cliveden Avenue . Delta, BC. Tel: 604-278-3221. Website: DBC Marine. **location may be moved to the adjacent warehouse in the future**. **can do hydro test.Mar 1, 2019 · I got a 120l tank so less than half your size - a 2Kg (4.2lb) CO2 extinguisher lasts consistently 5months but runs 18hrs a day (twice as long as most). I'm guessing the advice to get 5lb tanks sounds about right if you don't want to be constantly switching tanks out! To use this CO2 Calculator, simply input the dimensions of your room. Our tool makes a few assumptions: The ambient CO2 level is around 300ppm. The target CO2 level is around 1500ppm. You will add CO2 for 15 minutes every hour. After you put in your dimensions, you'll see your calculated CO2 flow rate in green.

When a CO2 tank is reasonably full it will contain a mixture of both CO2 liquid and vapor. As long as both liquid and vapor are present, the pressure in the (CO2) tank will depend only on the (ambient) room temperature (not "fullness") as shown in the table below: Tank Temperature Cylinder Pressure (F) (PSIA) @69° 837 @71° 859 @75° 905 @77° 928

2.5-5 lb. cylinder for 20-gallon aquariums or smaller; 5 lb. cylinder for 25- to 40-gallon aquariums; 10 lb. cylinder for 55-gallon aquariums or larger; If you plan on using one regulator with five or six aquariums, then scale the CO 2 cylinder size accordingly. For more information on CO2 systems in high tech planted tanks, read the full ...The amount of time a 5lb CO2 tank will last in a kegerator depends on many factors, including how often it is used and how large the beer lines are. Generally, a 5lb tank can last anywhere from one to three months if the kegerator is used regularly. It is important to remember that a CO2 tank needs to be refilled periodically, as the CO2 is ...Jan 9, 2008 · I'm not saying it's bad to run CO2 24/7, a lot of people with great tanks do it, but it uses CO2 a lot faster. Eheim Pimp #254, Eheim Wolverine #1 55 Gallon Work in progress Once I start injecting co2 it jumps to 800ish after a couple minutes. I filled up the little 5lb tank about a month or so ago I'm already down to 600. I am running a high bps from two points but I didn't think it would go so fast especially when the 10 (I know dbl the size) lasted sooooo long!Carbon dioxide, or CO2, forms a covalent bond. Any compound made up of non-metals will form a covalent bond, while compounds made of a metal and non-metal form an ionic bond. A cov...When cal co2 demand remember to fig in 450-550ppms of standard co2 air volume. 6. Make sure to have ample fans pushing the air around the room (co2 is heavier than air) 7. A 20 pound tank will last 7 days at 1500ppm (950ppm from the tank) 11 hours a day for a room that is 450 cubic ft---10'x10'x4.5'.I always used a bit less yeast, like 1/4 tsp, and let it stand over night to give it some time to ramp up and displace the air with CO2. It normally lasted 2-3 weeks. WRT baking soda, I think the benefit depends on what sort of water you have. I have pretty hard water, and adding baking soda lead to a slowly foaming mixture, not good.5 lb aluminum CO2 air tank with Pressure regulating valve · Made of high quality aluminum alloy, making it lighter than steel · Has a capacity of 6 - 8 half kegs ... I usually only get 5-6 (maybe 7) kegs out of it but I always have one on 45 psi fir carbonated water and I go though 2-3 kegs of that. I also force carbonate my beer for 2 days at 45 psi (then let rest unplugged for a day) then hook back up for 8-10psi. I also purge each tank 5-6 times before carbonateing. Hello, I have a 20lb co2 tank on a 65 gallon I will be cranking out the co2 at right around 30 ppm. How long do your co2 tanks last and could you include a picture of your tank just to see how heavily planted it is just to give me an estimate at how long my 20lb will last. I'm just trying to...

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6,000 or 12,000 BTU. Mr Heater Buddy Flex. 2 hrs (high) 3.5 hrs (low) 39 hrs (high) 61 hrs (high) 8,000 or 11,000 BTU. The table above compares the run times of all Mr Heater Buddy models, either on a 1lb gas tank, or on a 20 lb tank. We tested all Buddy heater models both at low and at high settings, to compare their runtimes under these ...Exactly how long the bottle will last depends on the frequency of co2 injection and the size of the c02 tank. For example...if you boosted every 2 hours during lights on you would inject 5 times per day. So you would release the equivillent of 1.2 lbs of co2 per day. A 20 lb tank will last you 16 days, a 35 lb tank will last you a month and a ...I asked at my LHBS and the man said he gets about 4-5x 5gallon keg force carb & serving out of a full 5lb tank. Most HBS will fill CO2 tanks - also check welding and other places like that. ReplyA 5-lb CO2 tank will last between 6-8 half barrel, or full kegs, before it will need to be filled. A 10-lb CO2 tank will dispense between 10-13 full kegs per fill. This number can be higher or lower based on how often you're using your kegerator, the level of carbonation, and if your system is properly balanced.The number of kegs you can dispense before needing to refill your CO2 tank depends on the size of the tank. If you're using a 5lb. CO2 tank, you can dispense 2 to 4 full-sized kegs before needing to refill. The coolness of the ambient temperature also plays a role, with colder temperatures allowing for more kegs to be dispensed.Wow that looks like a scuba tank. For about $100 you could get an Aquatek CO2 mini regulator and get a 24 oz refillable CO2 tank. Get a good digital timer and use CO2 tubing (as opposed to airline tubing) Get a good diffuser. In a tank that size, the 24 oz kit will last a couple of months.Total Price: $280.48 $360.49. Add to Cart. This item: 5 lb New Aluminum CO2 Tank Cylinder with CGA320 Valve. $108.80 $130.56. [6 PACK] 16g Mini Regulator CO2 Cartridge - Disposable by Leland TapGas. $11.99 $24.78. 10 PACK 8 gram Disposable CO2 Cartridges for uKeg Growler. $15.08.But would vinegar be cheaper in the long run vs 5lb of powder that you can put in solution? God knows how long 5lb will last lol. Save Share. Like. 0 Reply. jrill Discussion starter ... When you use pressurized CO2 the tank of CO2 lasts much, much longer and the pressure gauge on the bottle gives you several days warning that you need to refill ... ….

In general, it takes about ½ lb of CO2 to dispense a quarter barrel of draft beer. Since most home brewers use 5-gallon kegs, however, these numbers are somewhat meaningless. For an average 5 lb CO2 tank and a 5-gallon keg, that means the tank will pump 31 to 44 kegs of beer. On a smaller scale, for portable cartridges, one 16g cartridge will ... New 5 lb. aluminum CO2 cylinder with a new CGA320 valve. The industry standard mid-size CO2 tank that combines top performance with easy portability. Aluminum cylinder is up to 40% lighter than the same in steel. CO2 tank is finished with an attractive and durable brushed exterior. Thick walled construction for long-term use without fractures ...The frequency of filling your kegerator CO2 tank will depend on how often you use your kegerator. On average, a standard 5-pound CO2 tank can last for about 5-8 half-barrel kegs. If you use your kegerator frequently, you may need to refill the CO2 tank every 2-3 months.I've been able to carb and push about 15, maybe 20 kegs with 1 5lb co2 tank. Check all connections by spraying Star San on all connections and look for bubbles. Be sure to check the regulator, ball\pin locks, around poppets and any O-rings. It can be tedious to try to find the faintest leak, which sounds like you have, but worth it once you ...10lb vs 20lb CO2 tank. ... Either tank should last you a long, long time, and a refill is pretty cheap compared to how long it's going to last you. ... I had a 5lb on my 40 gal. and it would last me about 7 months. i just upgraded to a 20lb because the 5 cost $18 to fill and the 20 was $28 to fill. I would go as big as you can fit. Save Share. How Long Does A Co2 Tank Last - Co2 Size Chart Here we’re discussing in GREAT DETAIL, and over delivering with info, how long a co2 tank lasts.We go into de... Want to know how to clean a water softener resin tank? Check out our guide on How to Clean a Water Softener Resin Tank now and find out! Advertisement For those homes that are on a...Getting a facial isn’t just self-care; it’s quality skincare. And now, one of the most reliable dermatological facial treatments uses carbon dioxide (CO2) gas and a laser to rejuve...Hi! I bought a 5lb co2 tank and im using a carbonator cap to carbonate sodas. One guy told me it could make about 1500l of carbonated drink, but i think that sounds a bit high for a small 5lb tank. I would really want somebodys opinion on this. Thanks in advanceHi! I bought a 5lb co2 tank and im using a carbonator cap to carbonate sodas. One guy told me it could make about 1500l of carbonated drink, but i think that sounds a bit high for a small 5lb tank. I would really want somebodys opinion on this. Thanks in advance How long will a 5lb co2 tank last, Popular Welding Gas Bottle Sizes for MIG and TIG. There are many size gas MIG/TIG tanks on the market. But the three main sizes a homeowner, or hobby welder will most likely use is the 40, 80, or 125 cubic feet ("cf") tanks of Argon or MIG gas mixture (75% Argon, 25% CO2). The largest of the three sizes provides plenty of use time without ..., Hey folks, just like the title says, how long do CO2 tanks last?? I'ma be growing 3 dwc in a c24 cab. i was thinking about a 5lb tank. How long could i go..., The capacity of this size tank is 5lb of CO2 and it can hold 80-90 cubic feet of CO2. The usual dimensions of a 5 lb CO2 tank are 12. 2” diameter x 17.5” height. The empty weight of a 5 lb CO2 tank is 15-17 pounds and the full weight of it is 22.5-25.5 pounds. The water capacity of a 5 lb CO2 Tank is 2.5 gallons., This means that each time you dispense a keg, you are using up a certain amount of CO2. The amount of CO2 required for dispensing beer depends on the pressure at which you carbonate and dispense, as well as the length of your beer lines. A 2.5 lb CO2 tank contains 2.5 pounds of CO2, which is equivalent to approximately 40 ounces or 1134 grams., Apr 6, 2021 · For example, if your homebrewing equipment features corny kegs (5-gallon capacity), a small 2½-pound CO2 tank will dispense for about 7 to 11 kegs while a 10-pound CO2 tank can last up to 44 kegs. How to Use a CO2 Tank: Tips and Warnings Learning how to use a CO2 tank is not really difficult. The two most common problems you might run into are ... , Hi! I bought a 5lb co2 tank and im using a carbonator cap to carbonate sodas. One guy told me it could make about 1500l of carbonated drink, but i think that sounds a bit high for a small 5lb tank. I would really want somebodys opinion on this. Thanks in advance, The life expectancy of our fire extinguishers is approximately 10-12 years. You should replace a non-rechargeable FE after 10 years from the manufacture year. Rechargeable FE can be taken to a fire extinguisher equipment service company for inspection/recharge/rebuild. The year of manufacture is located on the UL nameplate/label on the fire ..., That's only 26 kegs (assuming 5 gal corny). I get about 8-10 kegs out of a 5lb tank. Fill and purge twice (oxy/starsan), force carb, and serve at about 12 psi. Check my math, but with 2 purges, carb to 2.5 vol, and serving at 12 psi it should take about 6 volumes (30 gal) of CO2. The 1.3 oz CO2 per 5 gal mentioned earlier is close., How Long Will a 2.5 lb CO2 Tank Last? If you’re a homebrewer with limited space, there’s a good chance that you have a 2.5-lb CO2 tank. As you might have guessed, a 2.5-pound tank will only last half as long as a five-pound one. Here’s a table showing how long a 2.5-pound CO2 tank will last with various keg sizes., The amount of time a 5lb CO2 tank will last in a kegerator depends on many factors, including how often it is used and how large the beer lines are. Generally, a 5lb tank can last anywhere from one to three months if the kegerator is used regularly. It is important to remember that a CO2 tank needs to be refilled periodically, as the CO2 is ..., in a 55g tank i guess im sposed to run like 3 bps or so... with one of those amano 3 oz tanks how long would a tank probably last? month? 2? 3? in this thread in this sub-forum in the entire site. ... how long would co2 last. 983 Views 9 Replies 8 Participants Last post by Jaggedfury, Oct 26, 2010., You will find an outline of the current laws pertaining to CO2 tanks and should help get them up to date. New Tanks Can Be Six Months To Twelve Months Old. Specifications: Made out of Brushed Aluminum. 5lb Capacity. DOT stamp. 1800 PSI. CGA-320 Brass Valve with 1.125 Male Thread (Use with CO2 Regulator), According to Via Michelin, the average capacity of a tank’s fuel reserve is 1.3 gallons, which can allow you to drive from 30 to 60 miles before running out of fuel …, 5lb. CO2 Tank. Jump to Latest Follow ... replies 15 participants last post by Kramer Feb 8, 2009. jomaset Discussion starter 19 posts · Joined 2008 ... I have one of the small air compressors and they work but take a very long time to re inflate mt 35's. I finally bought a 10lb Powertank setup after watching all of my buddies air up and leave ..., Physics says you're wrong. CO2 liquefies at 870psi at room temp that pressure doesn't change. Even paintball tanks are filled with liquid CO2. All CO2 tanks hold liquid CO2, fill stations just have a siphon tube so it fills with liquid …, The last one I bought I found on Craigslist for about $30 (I think - can't remember exactly). They last about 3 - 4 months on my 50 gallon frag tank and 3 - 6 months on my 3 tank 480 gallon system. When they run out I swap them out at NexAir on Leeman Ferry Rd. I think it's about $20 - $25 for the exchange., Here are the popular tank sizes and how long they last. ... CO2 tanks are filled by weight, instead of volume. One pound of CO2 provides 8.741 cf of shielding gas. Freezing can damage a regulator not rated for 100% CO2. 100% CO2 (C100) Cylinder Sizes and Operating Time., A 5lb CO2 tank can typically dispense between 6-8 half barrel kegs, assuming it is full. A half barrel keg holds 15.5 gallons of beer, so you can dispense between 93.0 and 124.0 gallons. Of course, the number of kegs you can dispense will depend on a variety of factors, including the temperature of the environment the tank is stored in, the ..., Apr 10, 2016 · The tank pressure wont start dropping until it is nearly empty. My understanding is the liquid is gone at this point and only gas remains. Somebody correct me if that is wrong. Regardless, usually will only last a few days after it begins to drop. That does seem fast to burn through 5 lbs. Should do a thorough leak check with soapy water on ... , I was wondering how long a 5lb CO2 tank usually lasts. I kegged 5 gallons, forced carbed at 20psi for 3 days and served at 9psi since mid December. Just recently noticed my regulator is down below 5psi and tried to turn the pressure back up to 9 psi to no avail. The tank does feel light so wondering if it's empty., Mar 8, 2008. #10. I use an automatic co2 doser in one tank, and a regular solenoid that turns off at night in my others. The automatic lasts about 8 months, the regular solenoid about half that. Oh, and its a 5 gallon bottle. Expand signature. 720g - …, A 5-lb CO2 tank will last between 6-8 half barrel, or full kegs, before it will need to be filled. A 10-lb CO2 tank will dispense between 10-13 full kegs per fill. This number can be higher or lower based on how often you're using your kegerator, the level of carbonation, and if your system is properly balanced., How long your welding gas cylinders will last depends on the gas flow rate. A cylinder with a capacity of 80cf will last about 4h if the flow rate is set at 20cfh. In comparison, a 125cf cylinder will last 12.5h if you use a flow rate of only 10cfh. Estimating how much gas you have left depends on the gas type but it's fairly easy to do., How long will a 5 lb., 10 lb., and 20 lb. CO2 tank last? A 20 lb. CO 2 tank will yield approximately 90 gallons of soda, therefore a 10 lb. CO 2 tank 45 gallons and a 5 lb. 22.5 gallons. How much soda does a 2.5 & 5 gallon of Bag-in-Box syrup make?, Open your 15 pound tank, this lasts for about 30 seconds. Your 20 pound tank is going to last for about 40 seconds, 20 pound is very common with special effects. Co2 special effects and Co2 stage effects. These 20 pound, 35 pound, 50, 75 100 is what they normally use on stage effects., Once I start injecting co2 it jumps to 800ish after a couple minutes. I filled up the little 5lb tank about a month or so ago I'm already down to 600. I am running a high bps from two points but I didn't think it would go so fast especially when the 10 (I know dbl the size) lasted sooooo long!, 10lb vs 20lb CO2 tank. ... Either tank should last you a long, long time, and a refill is pretty cheap compared to how long it's going to last you. ... I had a 5lb on my 40 gal. and it would last me about 7 months. i just upgraded to a 20lb because the 5 cost $18 to fill and the 20 was $28 to fill. I would go as big as you can fit. Save Share., The Mercedes C Class is a popular choice among luxury car enthusiasts, known for its sleek design, powerful performance, and advanced features. However, in today’s environmentally ..., 6,000 or 12,000 BTU. Mr Heater Buddy Flex. 2 hrs (high) 3.5 hrs (low) 39 hrs (high) 61 hrs (high) 8,000 or 11,000 BTU. The table above compares the run times of all Mr Heater Buddy models, either on a 1lb gas tank, or on a 20 lb tank. We tested all Buddy heater models both at low and at high settings, to compare their runtimes under these ..., I'm interested in doing this with sodamod tanks. Refill. I purchased a 10 pound CO2 tank with a siphon tube (you need the siphon tube to transfer liquid CO2 at the bottom of the tank instead of gas CO2 at the top of the tank). The fire extinguisher place I take my tanks to for filling charges $14 for a 5 pound tank and $17 for a 10 pound tank., But Airgas has always been an "expensive" place. I consider this an OK situation since a 5lb bottle of CO2 lasts me a long time. Meanwhile, there was a time when I came to Airgas to do a swap, but they had no full CO2 bottles ready. They pointed me to a different CO2 place (Carbonic Service in Santa Clara), which seemed to be mostly brewer ..., ten footers Registered User. #4 ten footers, Jan 13, 2010. the calculator said that in my 7x7.5x5.5 room that a 20lb tank would only last .23 hours :-/. any help with this, i am looking into buying a co2 tank and i need help on the size and cost side of this, i have tried searching hella (thats why i am bringing back this old ass thread) so if ..., The amount of time a 5lb CO2 tank will last in a kegerator depends on many factors, including how often it is used and how large the beer lines are. Generally, a 5lb tank can last anywhere from one to three months if the kegerator is used regularly. It is important to remember that a CO2 tank needs to be refilled periodically, as the CO2 is ...