BackwoodsGA
Registered
I have a 3 cfm compressor and three 4500 bottles in a cascade system at 4,500 p.s.i.
You can't fill very many cylinders from a cascade system that small before the pressure drops way off. It would be even more limited with only two bottles in the cascade.
I have found that the only time I really use my cascade is late in the evening when I want to refill a few cylinders without waking the neighbors with the compressor.
Closest neighbor is a half a mile away so noise is not problem. Love the country life!! Then again closest air fills are an hour away hence the compressor.