bill, 220 v 1 ph 60 hz compresser draws 2.5 amps each leg for 1/4 hp Gast rotary vane compresser which will aereate 2 acre pond , which you already know lol . a 115 v draws 5 amps one leg , plain and simple , smaller wire longer distance . im not telling anybody how or what size wire to run , thats for you to talk to a qualified electrican . off course you have figure in start up amps and line drop . but you go lot father with 220. im running mine 4 hours night ,4 hours in morning , on timer. in evening i run wall fall pump 220. hope that helps
