I pondered the same question and since I already had a large piston compressor in my pole barn here's what I did. First I went to SurplusCenter.com and purchased a 1-10 psi air regulator and installed it on the existing compressor. I then ran 300' of 3/4" polypropylene pipe rated at 100 psi and connected it to an pond air-stone purchased off eBay. My compressor draws 7 amps running at 220 volts but it runs for only a small fraction of the time as the pond pumps that spin away 24/7 do. You can lay your hand on the head of the compressor between off cycles and it's cool to the touch so I really don't see how using one of these compressors will burn it up. Especially since it's only drawing but a few psi off the tank continuously. Mine has been working for months now.
