-pros/cons with powertanks vs installed air comp..
Here is my take. Please feel free to move edit or add to my list.
I am going to install a york hopefully soon, but I currently have CO2. I used a cheap regulator and an air line.
Pros:
portable, not stuck in your rig needing 50' of air hose or in just one rig, you can loan it out or put it in the tow rig.
cheap, doesn't cost much to refill or purchase outright
Cons
CAN RUN OUT! Bad news if you need it.
you have to keep paying to refill, plus time to go somewhere to get it filled.
Did I mention you can run out!?!?
Depending on the regulator it can freeze up.
slight hazard having a bottle of compressed gas in your rig.
A/C setup
Pros:
Tons of air
No refill needed
Cons:
cost
setup
not portable
need the engine running to run it, so if your rig is dead so is your air
need room in the engine compartment
12v, similar to an A/C setup..?
Pros:
lots of air
can be mounted in many places
portabilty? depending where and how you mount it?
Cons
portability? again depending on where and how you mount it?
have to wire it in, could be easy near a battery, or harder to the back away from a battery
needs power, so if your rig is dead so is your air after you kill the battery