Bill, you're right. I didn't mention that, but I need to find out exactly how many amps that 1/20 HP compressor pulls. On some sites it says 1.5 amps which would be 175 watts, but on other sites it says it only pulls 1.0 amp.

See here:
http://www.theponddiggersupplies.com/Dia...-DC22-p-20.html