Should I buy a portable air tank ???

[sydsheba]

I am completely new to airbrushing -- I purchased a Paasche VLS and a Powercat 130. I already had a small compressor w/gauge, however, I did go ahead and purchase a moisture filter w/seperate regulator.

Now I would like to get a portable 5 or 10 gallon air tank which can be filled from my compressor. My question . . . would that work with the airbrush? If so, could I get a few hours of use on a full tank? I'd really like to use it in the travel trailer when we're not hooked up to power.

Thanks in advance for your input.
Sydsheba

[Absolute Air]

Hi Sydsheba! How much pressure *(psi) do you run? The one problem I see with a portable tank is that as you paint the pressure will be lower and lower. The moisture filter is always good to have. Let us know what paint you use and how much psi and what you paint on and myself and many others can be of more help to ya. Good luck and let us know some particulars, Alan

[JimmyG]

Hello Syd...please go and introduce yourself so we can know you better and likewise answer your questions better....Welcome to the forum! Here's a quick link...It's "Introduce Yourself".....
http://www.airbrushtech.info/AIRBRUSH/forum/forumdisplay.php?f=4

Now to answer your question...The larger the portable tank you have, the more time you will have.....You'll need to add another regulator on the portable tank to measure out the pressure to your airbrush evenly....

[sydsheba]

I am doing the very basics - dots, lines, shading on paper. Delta Ceramcoat Acrylic Paint thined with Distilled Water. Will be using the Delta Ceramcoat Acrylic Thinner when it comes in. We live in a small town in Northern AZ - most everything is ordered on-line. Running approx 25-35 psi.

After I learn the basics - I'll try other paints.

[sydsheba]

Should I get another moisture filter for a portable air tank?

[JimmyG]

Here's the deal Syd...the powercat compressor that you have (assuming some here since I don't have a picture to look at) is a countinuous running small and low PSI (30 psi output) made specifically to power the airbrush....

At a continous output of 30 psi, the "cfm" output is only gonna be about 1 or so....
I really don't think it will give you enough overall pressure to fill a portable tank to high psi in order to give a regulated output for very long at all.....You would have to fill the portable from a much larger compressor to use it for more than a minute or two....

[dampeoples]

If you get quick connects, you could use the same filter, but you can never have too many!

[sydsheba]

JimmyG - The Powercat 130 is another airbrush - my little compressor is an older PowerPal (continuous output) which goes to 100 psi. It has the airbrush setting for 20-35 psi.

Hubby also has a large compressor - he said he would run an air line into my workroom. That would be another "thread" (pros & cons).

If I can't get enough practice time on a portable air tank - I'll forget that idea.

Right now, I'm not sure what my ultimate goal is. There's lots of projects I want to do but need to learn how to airbrush first.

I very much appreciate everyone's input - I know I'll be brainstorming with you guys often. Thanks again. Sydsheba

[dampeoples]

If you can get a line run into your workspace, that would be ideal! Install a regulator and a moisture filter on your end, so you can regulate pressure independently from his setup, as well as trap any water created from the extra hosing.

[JimmyG]

OK Syd...specifics help for sure....hadn't heard of a powercat airbrush, just the ebay combos by the name....

Bring on another thread Syd...we're here to help....

If you can pump up a portable tank to 100-125 psi and regulate it out at 25-30 psi it will last longer...the larger gallon volume of the portable, the longer it will last time wise when first built up to 125 psi on the portable tank.....
It's not quite the same as pumping up a flat tire with a portable tank, as the airbrush goes with your painting strokes and how the trigger is worked....

Here's a suggestion if you know someone that you can borrow one from before you buy one....
Pump the portable up to full pressure capacity, hook up an inline regulator to your airbrush hose and tape the trigger down on your brush....Time how long it takes for the tank to die off and add 25% time on that for actual airbrushing time....

[Captain Art]

A lot of temp tattoo artists use air (CO2) tanks... I'd like to have more info about them as well... I live in an apartment with a medium-sized, noisy compressor.

[redanner]

I am completely new to airbrushing -- I purchased a Paasche VLS and a Powercat 130. I already had a small compressor w/gauge, however, I did go ahead and purchase a moisture filter w/seperate regulator.

Now I would like to get a portable 5 or 10 gallon air tank which can be filled from my compressor. My question . . . would that work with the airbrush? If so, could I get a few hours of use on a full tank? I'd really like to use it in the travel trailer when we're not hooked up to power.

Thanks in advance for your input.
Sydsheba

Sydsheba if you want a tank without an air compressor I would consider a bottle of CO2 from your friendly welding shop! Will last much longer than a portable tank! No matter what the pressure is in a portable it will decrease rapidly! There is a difference in stored air in a tank and the amount of foot pounds in a cylinder tank! Not unless you have a commercial compressor that pump will 12 to 18 hundred foot lbs in a regular tank! I could be all wrong about what I’m talking about but have ever seen an air compressor tank even in big auto shops that could hold that much! That’s why if the air is not sufficient they have more than one compressor working!

[redanner]

A lot of temp tattoo artists use air (CO2) tanks... I'd like to have more info about them as well... I live in an apartment with a medium-sized, noisy compressor.

Yea Capain you just need to go down to your local welding shop and inquire! Usually they rent the tank on a contract. Then when you get low you take it the shop from which you rented it and they exchange it for a full one. Of course the first time is more money because you pay up front for the time contract rental! Usually that is a one time fee! In reality it is more like a deposit on the tank so if you move and take it with you they won't loose the price of a tank! I have one sitting out on my back porch right now for my mig welder. You will also have to buy a tank regulator or flow meter which are different from regular compressor gauges! I just converted my flow meter from my mig welder to work on my compressor! I have never had the control of air flow like I do now!

[sydsheba]

Thanks to all -- I'll stick with my little compressor. Seems like a CO2 tank would be more expensive than the gas for a generator. Thanks again. Sydsheba

[JimmyG]

Actually while still on topic here, it would make a good "How-To" topic if some of you guys would do topic thread on how to hook up a Co2 tank for airbrushing.....

"Expensive" is just a variable on what "uses" meet the "needs"....Look at the cost of a nice quality airbrush.....about the same as the tank and regulators.....

[redanner]

Actually while still on topic here, it would make a good "How-To" topic if some of you guys would do topic thread on how to hook up a Co2 tank for airbrushing.....

"Expensive" is just a variable on what "uses" meet the "needs"....Look at the cost of a nice quality airbrush.....about the same as the tank and regulators.....

jimmyG I would like to take that project on! If anybody else has already started it let me know so I don't waste my time!

[Captain Art]

Pardon my lack of chemistry skills, but airbrush artists using CO2 cylinders fill them with CO2 or just plain air?

[redanner]

Pardon my lack of chemistry skills, but airbrush artists using CO2 cylinders fill them with CO2 or just plain air?

CO2 is cheap! I don't think you can get just plain air it is an oxygen air mixture and I think it is hospital grade!

I'm back because it just dawned on stupid me that yes you can get oxygen. Thats what is used with Oxygen Acetylene torches, brazing, and steel welding! It costs a lot more than CO2

[JimmyG]

jimmyG I would like to take that project on! If anybody else has already started it let me know so I don't waste my time!
Please Go with it Robert in "How-To's"...It's been discussed here a bunch here and no one has done a "show how" on the regulator, tank, gauges needed, hookup hoses and such.....I hope you will include pictures of all such....

Using "Oxygen" filled tanks is a BigBig NO NO....oxygen can be a part of flammability....hope you'll include some info on that Robert....

Most welding suppliers also have "medical grade compressed air" tanks for rental and it's not the same as oxygen....It's merely highly compressed clean air and is used for stuff like powering plasma cutters off site and short term breathable air for short term uses....
It costs more per tank full than Co2 and degrades alot faster from the tank than Co2.....
There's some other factors involved with the different "tanks" and whats packed inside of those to "hold" and regulate storage of the "gas"....

I hope you'll go there Robert, would help a bunch......

[redanner]

Please Go with it Robert in "How-To's"...It's been discussed here a bunch here and no one has done a "show how" on the regulator, tank, gauges needed, hookup hoses and such.....I hope you will include pictures of all such....

Using "Oxygen" filled tanks is a BigBig NO NO....oxygen can be a part of flammability....hope you'll include some info on that Robert....

Most welding suppliers also have "medical grade compressed air" tanks for rental and it's not the same as oxygen....It's merely highly compressed clean air and is used for stuff like powering plasma cutters off site and short term breathable air for short term uses....
It costs more per tank full than Co2 and degrades alot faster from the tank than Co2.....
There's some other factors involved with the different "tanks" and whats packed inside of those to "hold" and regulate storage of the "gas"....

I hope you'll go there Robert, would help a bunch......

I will give it a go! I'm fmailar with that stuff some what! Back in the early 80s. I was the first Autobody Shop out of 7 in our small city to buy a mig welder! They didn't have the small ones then I bought full blown Miller-Matic 200 amp with spot welder, capable of being converted to weld aluminum! Still have it to this day!

[JimmyG]

Go for it Robert...if I can help with adding some formulas on how to determine how long the Co2 tank will last, given the airbrush output cfm's and psi pressures we can go there.....
Would be most excellent for a "How To" hook it all up.....oh yeah....

[CarsonsChaos]

You can also try a fire extinguisher company, were they refill extinguishers.
I worked for a fire protection company were I picked up a cylinder and some gauges to run in my aquarium. (aquatic plants).
The cylinder is an old CO2 fire extinguisher tank.
You have to have the cylinder pressure tested every 6 years if I remember right.
The exact set up would work for an air source.
You may also find what you need at a beer or soda company.
CO2 is what they use for soda and beer taps.
CO2 last A LOT!! longer than air.
The liquid to gas ratio that it produces is big.
It'a a liquid under pressure and boil at a low temp, turning into CO2.
May even find an old CO2 extinguisher in a yard sale.
Resteraunts are replacing CO2 extinguishers with updated chemicals for grease fire so that might be an option for an old tank.

[JimmyG]

Dang Carson....Co2 fire extinguisher tanks are not the same as used for Co2 storage tanks like used with welding and such....there is a big difference in how they are constructed and what's inside...

Fire extinguisher tanks go up to a certain size and weight to be able to be picked up and used, and that limits storage capacity in relation to usage for airbrushing air supply....

Yeah Carson, they may work for short term portables, how about add some technical links on such......

[CarsonsChaos]

As far as a how to,
I got an old CO2 extinguisher from our junk pile.
Threaded off the top,(handle and trigger.) Make sure it's empty (important).
Had it tested by our tech.
Threaded on a valve instead of the handle.
Have it filled.
Gauges thread right on the valve.
The gauge is threaded so it's a matter of finding the brass fitting you need at a hardware store, to hook up the hose.
I adapted mine with a nipple to slip on a piece of silicon hose.
But mine is feeding a aquarium at about a bubble a second at about 5 PSI into a filtration system.
Different but the same.

[CarsonsChaos]

http://www.plantedtank.net/articles/Pressurized-CO2/19/
We filled both kinds with the same thing and tested them with the same equipment.
Used a scale to get the cylinder filled to the right weight.
If I'm wrong, disregard everything I said.
Don't want any one blown up cause of me.
But I've used this set up for about 7 years.

[CarsonsChaos]

I've got a 5, 10, and 20 pounder.
They hold 5, 10, or 20 pounders of CO2, not counting the tank.

[JimmyG]

Good deal Carson...thanks for the link.....5 psi ain't gonna feed an airbrush....
Most folks here don't have the connections to have salvage fire extinguisher tanks tested for safety.....Some of us tinkerers can get by with non safety on our own accord....

I hope Robert will follow thru on a rentable or buyable Co2 tank setup for airbrushing that is safe for the average untechnified user.....

[JimmyG]

I've got a 5, 10, and 20 pounder.
They hold 5, 10, or 20 pounders of CO2, not counting the tank.

Ok Carson...how about show some pics of those....and give size dimensions, especially the 20 pounder.....

How about let's make this tread really informative....pictures speak a thousand words....

[CarsonsChaos]

Like I said, I'd hate to see someone hurt because of something I said.
I'm going to do some digging, and make sure I'm not living on the edge of disaster.:dropjaw:
I'm just not sure why the tanks would be unsafe, they are made to hold the same thing, and be bounced all over the place it vehicle etc.
As far as not being large enough, That may be a problem, never tried air brushing with one.
I do know at the rate I use it, my 10 pounder last about 9 or 10 months.
Anyway, better safe than sorry.

[CarsonsChaos]

This is my 10 pounder.
The 20 pounder is too big to fit in the cabinet, or I'd use it. I have used it but it had to sit outside.
Anyway, that an CO2 extinguisher cylinder.
It's a beverage cylinder valve and regulator.
I've done enough damage here.
I've been known to do dumb things before.
Hopefuly I don't have another one to add to my long list.


http://www.airbrushtech.info/AIRBRUSH/forum/attachment.php?attachmentid=10873&stc=1&d=1193631140
tn_DSC01993.JPG

[JimmyG]

I quote ya Carson..."never tried airbrushing with one"....that is a factor here.....and you mentioned "the rate I use it" another key factor.....

Please pardon us Sydsheba on this maybe hijack excursion on your thread, things develop for the best.....

The biggest deal that I see between a certified refillable tank and a fire extinguisher tank, is WHO will refill it for you with high pressure refill Co2...? It's a very impotant factor for reuse on the common consumer level....
The next biggest deal is the valve that has to be on top to allow Co2 refill by someone that will do it certified safety wise.....It's not the same as pumping up a plain air storage tank...
If you're gonna try use a fire extingusher tank, ya haveta match the valve to hook up the common regulators.......
Still, a local Co2 provider is NOT gonna want to fill any other than a "certified and tested" tank.....It's all about safety pays.....

[JimmyG]

Hey Carson...thanks for the pic link.....It shows the valve and your regulator hook up.....That's what folks here that are searching for info need to see pictures of.....

For example, I can take a tank like that on a sign install job and hook up my "touch up gun" to it and spray color match paint on all the exposed foundation bolts, nicks in steel posts or whatever and not have to load up my mini compressor and generator on the shop truck.....
The "air time" is the factor and that can be measured by knowing specifics on a certifed refilled tank....That is valuable information on company time...

Thanks Carson.....


This is my 10 pounder.
The 20 pounder is too big to fit in the cabinet, or I'd use it. I have used it but it had to sit outside.
Anyway, that an CO2 extinguisher cylinder.
It's a beverage cylinder valve and regulator.
I've done enough damage here.
I've been known to do dumb things before.
Hopefuly I don't have another one to add to my long list.
http://www.airbrushtech.info/AIRBRUSH/forum/attachment.php?attachmentid=10873&stc=1&d=1193631140
tn_DSC01993.JPG

[JimmyG]

Thanks to all -- I'll stick with my little compressor. Seems like a CO2 tank would be more expensive than the gas for a generator. Thanks again. Sydsheba

That would be if you already have a small generator...If not the Co2 tank will be less expensive..The regulators, tank deposit and such can get you portable for $150-$200 or less depending on locale....

Hope you'll pardon us Syd on all this interjection on your thread...I hope some good info will come forth in other areas as well....

[CarsonsChaos]

I thought I was done with this thread but I'll add some links.
Recharging an extinguisher is legal and required. Fire insurance and fire marshal require it.
Pressure test and refill every 5 years.
All tanks, nitrigon, oxygen, fire fighter air tanks require testing or nobody will fill them. even paint ball gun cylinders.
We did them all.
http://fm.colorado.edu/firesafety/documents/FireExtingInspMaintTest.pdf
This is the company I worked for and that's what I did for them.
Though I don't work for them anymore, they still refill it for me for free when needed.
If it weren't legal or safe, I dought they would touch it.
http://www.cintas.com/FireProtection/

http://www.careerbuilder.com/JobSeeker/Jobs/JobDetails.aspx?job_did=J3F0RN770WSS47RSHQT&cbRecursionCnt=1&cbsid=cd9c76793df34808b6b1837730078d62-246973402-JK-5&ns_siteid=ns_us_g_cintas_fire_protection
If your interested in how high pressure cylinders are tested.
http://www.sounddive.com/hydro%20test%20illustration.htm
I'm not sure how much air you'd get from a 5 pound bottle but think how much steam you get when boiling a gallon of water. Lots. I'm sure there is a formula out there but when I look, all I get is global warming junk.
You can do a google search on pressurized , CO2, aquariums and you'll see all kindsa stuff on that.
Controls PH of the water and Carbon dioxide for the plants. hence CO2.
If any one is into aquariums
As far a the CO2 extinguisher being safe to hold CO2, well your on your own there. I'd say it is.
They are CO2 fire extinguishers after all.
You can hash it out, but I'll keep using mine.
If I had another regulator, I'd give it a shot with the airbrush.
Then I could give you an idea how long a tank last.
I know :blah::blah::blah::blah:

PS. I could be wrong.

[Cowboy]

Good Post & Links CC. Good info to know. Never realized They had that kinda preasure. Thanks for taking the time .

[sydsheba]

"Hope you'll pardon us Syd on all this interjection on your thread...I hope some good info will come forth in other areas as well...."

JimmyG - I'm learning alot - I actually went to the drug store to check on CO2 tanks - only place in town that has them. The ones available are small 20oz - definately not like what is pictured? Thanks for all the great info.

Sydsheba

[JimmyG]

OK Sydsheba...the tanks we're talking about are not the drug store variety.....Try keep looking around on other posts or try using the search functions here for other info.....

Hopefully Robert "redanner" will start a "how to" thread on the most safely available Co2 tanks and the regulator hook ups to go with such....

Please come back with any little questions whatsoever on this subject....It's your thread and it got amplified up a bit....

[CarsonsChaos]

I'll add something that is a big, big, no, no.
Never try using an empty dry powder extinguisher for air storage.
The powder used it those, when mixed with any moisture, or moist air, is very corrosive.
That's why you won't find powder in or around computers or electronics, or at least you shouldn't.
They are recharged with completely dry air.
The 6 year internal inspections are done for that reason, To look for corrosion inside the tank.
Corrosion is what junks most powder extinguishers after so many years.
I take that back, external abuse is probably the biggest.
Besides, unlike a CO2, that a cylinder valve screws into without any modifications.
You won't or shouldn't find anything to screw into a dry powder cylinder.
Even the hose threads are different if I remember right.
Dry powder and CO2 cylinders are not the same, WAY different.
Didn't want any confusion on that.

[redanner]

OK Sydsheba...the tanks we're talking about are not the drug store variety.....Try keep looking around on other posts or try using the search functions here for other info.....

Hopefully Robert "redanner" will start a "how to" thread on the most safely available Co2 tanks and the regulator hook ups to go with such....

Please come back with any little questions whatsoever on this subject....It's your thread and it got amplified up a bit....

I don't know but maybe I am misunderstanding your this post JimmyG "safely available Co2 tanks"
I Need to it make clear! I am not getting involved with suggesting jury rigging or even considering pressurized tanks of any kind except what you purchase or rent at your local welding or Co2 shop! I'm collecting data for Co2 and its uses with the airbrush and thats all! Trying to put together combinations of different tanks with regulators or flow meters would be like a tiger chasing his own tail and dangerous! I'm not putting myself or Airbrush Tech into any liable situations! What you people interested do on your own is your business and responsibility not mine!

CC that is a nice cheap way to go http://www.airbrushtech.info/AIRBRUS...d=11936311 40 (http://www.airbrushtech.info/AIRBRUSH/forum/attachment.php?attachmentid=10873&stc=1&d=1193631140)
tn_DSC01993.JPG . That bottle doesn't have cap to put on it for transporting, the valve has no protection nor a mount or pedestal for the bottle to sit in, or chain to keep it from falling over, it is dangerous! If your home owners insurance company new you had that in your home (I presume that is where it is) or even property your insurance would be null, tilt, zip, 0.

[CarsonsChaos]

Can't cap it. Cap will not over the valve on any bottle smaller than 20 pounds.
They don't make them that small with a cap, you'd have to take off the valve itself to put one on.

Here's a complete set up. Available at most large aquarium supplies

http://www.drsfostersmith.com/product/prod_display.cfm?pcatid=9933&Ntt=co2&Ntk=All&Ntx=mode+matchallpartial&Np=1&pc=1&N=0&Nty=1
Here's some beer and soda cylinders.
The new large ones have a guard but we rented to a lot of southern Illinois, bottles of CO2 and not one had a cap, legally.
http://www.micromatic.com/draft-keg-beer/gas-equipment-cid-19.html
My valve is a direct replacement for a beer and soda cylinder, same as you'll find in any place serving drink from a tap., soda and beer.
Drove a service truck around with a 30 pound CO2 cylinder 40 hour a week for years for servicing fire Suppression systems.Legally
Also carried a 5 foot tall compressed air cylinder whit over 2,000 pounds of air pressure, that one had to be capped, and well strapped. For servicing powder extinguishers.
My cylinder is no more dangerous than any CO2 fire extinguisher.
It just has a twist valve on it instead of a hand lever.
I GIVE UP.
It's a CO2 cylinder, tested and up to date, stamp and all.
A valve for a CO2 beverage cylinder.
Gauges off a CO2 beverage cylinder.
And has been filled several times by a licensed tech that goes by the book.
In fact he's been in the line of work for more than 20 years.
Do you need a cap and chains on you fire extinguisher?

[JimmyG]

Hey Guys...let's chill for a bit on the differences on the types of Co2 tanks.....It's all good discussion.....

I want to help clarify things here....This discussion is splaying off in 2 different application types here.....

Carson, your tanks pics are too small to be enlarged for closer viewing....That's an important picture factor because folks that want to learn need to be able to see closer pics....

One thing I see missing on your show Carson is a dual feature regulator that shows the volume of the Co2 tank versus psi/cfm ouput...
That is important for us "users" to know our usable tank life in terms of steady air flow and a way to looksee when the tank is gonna "go dead".....

Ya did say Carson that you never tried your knowledge of your tanks with powering an airbrush....After all, airbrushing with the air supply is the application subject here.....

If you guys will chill somewhat on "back and forth", perhaps Staff here can figure on "copy and split" this thread into a couple nice usable informative separate topics.....

I'm here to help develop threads like this one into positive informative forum content...

[CarsonsChaos]

Agreed.
By the way it is dual gauges.

[redanner]

Can't cap it. Cap will not over the valve on any bottle smaller than 20 pounds.
They don't make them that small with a cap, you'd have to take off the valve itself to put one on.

Here's a complete set up. Available at most large aquarium supplies

http://www.drsfostersmith.com/product/prod_display.cfm?pcatid=9933&Ntt=co2&Ntk=All&Ntx=mode+matchallpartial&Np=1&pc=1&N=0&Nty=1
Here's some beer and soda cylinders.
The new large ones have a guard but we rented to a lot of southern Illinois, bottles of CO2 and not one had a cap, legally.
http://www.micromatic.com/draft-keg-beer/gas-equipment-cid-19.html
My valve is a direct replacement for a beer and soda cylinder, same as you'll find in any place serving drink from a tap., soda and beer.
Drove a service truck around with a 30 pound CO2 cylinder 40 hour a week for years for servicing fire Suppression systems.Legally
Also carried a 5 foot tall compressed air cylinder whit over 2,000 pounds of air pressure, that one had to be capped, and well strapped. For servicing powder extinguishers.
My cylinder is no more dangerous than any CO2 fire extinguisher.
It just has a twist valve on it instead of a hand lever.
I GIVE UP.
It's a CO2 cylinder, tested and up to date, stamp and all.
A valve for a CO2 beverage cylinder.
Gauges off a CO2 beverage cylinder.
And has been filled several times by a licensed tech that goes by the book.
In fact he's been in the line of work for more than 20 years.
Do you need a cap and chains on you fire extinguisher?

I'm sorry CC I didn't mean to sound condescending or critical of your knowledge or usage of co2! After reading my post again that is just what it sounded like and I'm sorry! Most of the people though that would be using co2 bottles for airbrushing do not have the knowledge that you have! There are some people that could duplicate your system and it would be fine! Then there are others that think they could duplicate your system and it would become a nightmare! I know you have already made statements in previous posts that you would not recommend just anybody doing what you have done! My criticism should have been worded better so it didn't sound so harsh and more like things people should consider! I'm not challenging or criticizing the aquarium business but I would be curious to know if a Fire Marshall would approve a loose free fall environment that co2 bottle enjoys that you showed with the link! Again I'm sorry and it sounds like you should be doing the co2 article instead of me!

[CarsonsChaos]

Cool.
I do wounder though, how the fire marshal or insurance company would feel about a lot of use spraying, at home, me included, with our non sealed lighting, unsafe fans, and lack of extinguishers in the proper places.
I do have an abundance of extinguishers in the garage, only because I kept most of the trade ins.:D

[redanner]

Cool.
I do wounder though, how the fire marshal or insurance company would feel about a lot of use spraying, at home, me included, with our non sealed lighting, unsafe fans, and lack of extinguishers in the proper places.
I do have an abundance of extinguishers in the garage, only because I kept most of the trade ins.:D

Yea your right and I see it when I change the furnace filter! but that is for a another thread!

[CarsonsChaos]

If you google pressurized, CO2, and aquariums, you'll find 100's of how to's that are very close to what you'll be writing up.
Most are using Beverage cylinders.
Fairly popular in the aquarium world.
Just being helpful.