What Kind of Air compressor do you have in the garage. If you have more than 1, vote for the kind you use the most. I just thought that this might be interesting.

Compressors I have:
2 fixed 60 gal tanks in tandem with a single stage 3 piston main compressor and a dual stage 2 piston back up compressor. I only use the back up compressor for sandblasting or when we're running a lot of air for something like body work.
1 mobile 20 gal with the same compressor and motor as my back up compressor.
1 mobile 20 gal with a two piston Swan compressor. (anyone have a flywheel for a swan?)
1 mobile 10 gal with a single stage single. good for pumping up tires and that's it.
1 mobile 10 gal oil less for air brush.
1 huge 2 piston compressor pump. I'm thinking of taking the crappy aluminum pump off the back up tank and putting this monster on it to feed it for sandblasting. I'll probably have to go with a gas engine, because it was originally spun by a 15 Hp electric running on 575 V 3 ph. I only have 240 1 ph. at the shop.

The advice I have for anyone about to buy a compressor is stay away from aluminum. Cast iron is the way to go. The other thing is save your money and buy one bigger than you need it. Otherwise you end up with a collection of compressors you don't really need. IMO a big fixed compressor and a decent sized air pig is all a home hot rodder really needs.

Campbell Hausfeld 5hp, 2-stage, 60gal stationary similar to this one (they don't list the one I have any more) for painting, air tools, sand blasting, and general shop work, and a small portable to power my nail hammers and other small tools at remote job sites.

I have an ABAC compressor, 100 litre 2 HP

I picked up a 200 gallon tank for $35 plus the drive to go get it. One of the best additions to an air system. Just about completely eliminated any water problem in the air lines.

20 gallon cambell hausfeld with 120V 15amp motor and single stage 2 piston compressor motor. its to dam small for my DA sander, i could have goten a 230 volt compressor but the garage isnt wired for it.

princcess auto has a 80 gallon 2 stage 5hp 230volt for $1700(CAD) wich i think i will get one day

montea, that sounds exactly like my compressor! It works okay, but the DA kicks its butt! I am fairly satisfied with it, but would really like something bigger.

Is it possible to find a bigger tank and modify my current set-up to have a larger capacity compressor? Maybe by utilizing an additional tank and regulator?

ya you can add a second tank or get a bigger one and mount the motor and compressor ontop.

i seen in the paper the same compressor i got but no motor or compressor on it, only like 1/6th of the cost of what i paid for my compressor. i think i might find somthing like that till i get enough money for a 80 gallon 2 stage and the garage wired for 230 volt. i think you would just have to run a line from the tank with the compressor on the output to the input ontop of the other and then have the air line hooked up to the output.

I wouldn't touch a used tank w/ a 10' pole unless I knew for sure its history. Tanks can look great on the outside, hold a great coat of paint and be nearly rusted through on the inside. When a pressure tank explodes, it makes the network evening news. If you must go the used route, at least make sure it is an ASME coded tank so you have a fighting chance.

See this.

And this.

And this.

And this.

HOLY SMOKES!!! That's pretty amazing! I've thought about the possibility of an air tank exploding, but I've never seen the aftermath....I will be making sure that the tanks I use are new!

My air comprsssor is a custom job I got from my babysitter's (when I was little) husband when they moved to Georgia. It uses a what I believe a 2-piston compressor off a refridgeration unit, a 1.75HP 1750RPM westinghouse motor, and a speedaire tank. The thing maxes out at 80psi, and is real quiet. Sounds like a old Ford 8N tractor at idle. paputpaputpaputpaput.

Looks like my ABAC 100 litre oil filled compressor is history now. Looks like I'll be getting another one this year.

Thanks to FLYFISHER for helping me out

A 6 h.p. Sears, runs my board sander and d.a. pretty good.

Willys36, The first link was a compressor tank, the other were all high pressure vessils that have to withstand perodic inspection and testing. My used tank is an ASTM listed unit with the build plate still attached. I think it was used in an industrial application (200 gallon, duh!) as there was/is some thick oil/grease in the bottom with very little signs if rusting. I'm not sure about the original steel but, judging from the weight, it must be 1/2 inch thick or better.
In your first link, the buyer was a fool for not grabbing a hammer and taking a couple of swings at the bottom. If he'd done so, I'm sure he would have punched right through.
When we use this kind of stuff, we are playing with Big Boy Toys and must take reasonable safety precautions.

A Puma 5hp, 60 gal oiled vertical.