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  1. J

    Air compressor making noise only when in use (not when pump is on)....

    Greetings guys... Setup: 80 Gallon vertical, 20 CFM 3 cylinder, 2 stage, 5HP 220V air compressor. (most of this is irrelevent, but I figured someone may ask) When I am using an air tool, and impact wrench for example, I hear a hollow vibrating sound coming from the tank area. The pump is not...
  2. J

    Setting up a secondary expansion tank for my compressor

    Greetings guys and gals, this forum has been a huge help :thumbup: I just picked up one of these: Puma 7.5-HP 80-Gallon (Belt Drive) Two-Stage Air Compressor (230V 1-Phase) for a great price locally. It is used but functions excellent. The pump and motor are rated at 100% duty cycle, so it...
  3. J

    Two air compressor pumps, one motor, one tank - Help me ponder

    Greetings guys, you have been a huge help thus far in quest to assemble a nice compressor in my home shop. Idea: Have a single 80 gallon horizontal tank with two triple cylinder single stage compressor pumps, and one motor. The pressure switch is extremely heavy duty and operated a 7.5hp...
  4. J

    Help plumbing air compressor unloaders....

    Greetings guys, first post :rocker: Most of my internet related searches have brought me here, although I could not find an answer to one question... I bought a new compressor pump, and it is a triple cylinder, single stage. As a added feature, it has individual head unloaders (on top of each...
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