Omega air charger

Your moisture auto purge is set to go off to often or you have a leak. I had the same problem and after going over the compressor from top to bottom and agonizing over it found a leak where the foster fitting screws on the end of my hose. Don't have a 88cf tank ( you lucky dog ) mine is 72cf and it takes about 1/2 hour. Good luck. Great compressors.
 
I assume you have the unit with the auto purge? Time it and see how often it is purging. If purging to fast, slow it down. Your humidity will determine how often to set it. I did have a problem on mine taking a long time to fill, but chased it down to the quick connect on the hose leaking, but if you can plug the hose and build and hold pressure that eliminates any leaks. I guess it's possible that the pop-it in the check valve could not be making a clean quick seat and letting some air purge backwards. You could try changing it and see if it helps. Simple to do. Undo the plug on top back of the unit with the provided wrench. Reach in with the tweezer and lift it out and replace it with one from the rebuild kit. While it is open run the compressor for a min and reach in and clean the inside with a Q-tip. If there were some grease in there that slowed the pop-it reset that would increase your fill time. Other then that, give Todd a call at AOA. Great guy and knows what he's talking about. I'm questionable
 
Mine is leaking at the hose and I took it off and looks like I need a new Dowty washer. Does anyone know where to buy these and what size are they. I can wait and call Todd Monday. Did anyone install a Foster on the air outlet so you can remove that hose and put the cover on?? If you know it works please send me a pm or answer here. I think that would work great if yolu put a foster there. My unit takes one hour to pump 1100 psi. so at 4 hours it goes off at 4400 psi. Is that good times? I am falling in love with the machine. its a nice feeling having unlimited air
 
With the understanding that the OP was nearly a year ago, perhaps the info below might prove helpful to someone else:

My Omega tank came with a removable restrictor. My paintball shop had a helluva time filling my tank with that restrictor in place. I'm new here and unsure about how to add photos, but if you are curious and reply here or PM me then I will figure it out and show you the restrictor I mentioned. Simple 15 second job to remove it if you have one. 
 
"Mousefart"With the understanding that the OP was nearly a year ago, perhaps the info below might prove helpful to someone else:

My Omega tank came with a removable restrictor. My paintball shop had a helluva time filling my tank with that restrictor in place. I'm new here and unsure about how to add photos, but if you are curious and reply here or PM me then I will figure it out and show you the restrictor I mentioned. Simple 15 second job to remove it if you have one.
Obviously you have seen a significant difference with the restrictor removed, however AOA's description for the restrictor is to lessen the chance of overfilling your gun and supposedly has no affect on filling the tank.


Tthis is from AOA's web site.Provides portable high pressure air for refilling your precharged airgun while at home or in the field. The high pressure system provides ample fills on any size airgun cylinder, and reduces the frequency of having to travel to dive shops for a refill. This unit comes complete with the cylinder, valve and hose, making it ready to use with any standard 1/8" BSP adaptor which comes standard with most airguns. New to this cylinder is the 4500psi certified, simple to use valve. This valve allows precise control of the fill rate, and utilizes a design that restricts the flow rate while filling an airgun, but has no restriction while refilling the cylinder. Included is a quality 2-inch, Stainless-Steel gauge that is oil filled and reads in both PSI and BAR measurements. The DIN style valve comes complete with a 1 Meter long Zero-Kink hose that can be tied in a knot without kinking, and includes an adapter to fit the valve, making this unit compatible with both hose and DIN style fills.
  • 75 cubic foot capacity
  • 4500 psi fill pressure
  • Stainless Oil-Filled Gauge
  • Full 15-Year life*
  • DOT Certified
  • Slow Fill / Fast Refill Valve
  • DIN and 1/8" BSP capability
  • 1-Meter Zero-Kink Hose
  • Quick bleed valve release
 
Thanks for that info. Perhaps the restrictor had little or no effect in the fill rate from a low-flow pump like we typically use (?) but the Hi-rate pump at the paintball shop really struggled and the owner knew something was wrong right away. I think I will put the restrictor back in now that I have my own Omega Supercharger. Thanks again for your additional info.