<VV> Advice on air compressor specs.

[Taruffi57 at aol.com]

I am researching vertical tank compressors.  Won't be using it a lot,  but 
DO want it to be able to run basic air tools w/o gasping for breath and  
surely deal with wheel lug nuts.   Need to know max. cu. ft. per min.  @ what 
PSI should do the job.  Also, What is the difference between a sgl.  stage 
and dual stage unit?  I know I need a water separator and  filter.  Should it 
be 120 or 220 volts?  Prefer low maintainence, and  low money invested.  Not 
particularly interested in Chinese crap.
 
Joe Dunlap
Florida