Impatient guys often come up with simple ideas that will save a little time. We became irritated sitting next to our air tank to refill it from our big 150 psi compressor using the standard air chuck.

With the increased pressure, the O2 can be added to a SCUBA tank that contains ... of pressure on the pump cylinder, all from 120psi of pressure from a standard shop air compressor.

Instead of going out and buying a compressor, he decided to build one himself. It sure is an ugly duckling but we’re impressed with it’s performance. The air tank is an old spent fire ...