Seneca double shot

What does everyone recommend for a portable compressor. The two i have are brand new and the one took a crap after three fills. The leak problem, i have replaced the o rings made sure everything's tight and to me it's the fitting to the gun. I have two fill lines both leak. Not sure if im impressed with the double shot because of this. Don't know if there is a better fill line for the seneca double shot but getting frustrating.
 
All right ive had it with this gun. I bought a new fill line. It passed pressure test at 200 bar. Hook it to the gun and only gets to 70 bar on the compressor. The only way i can get the compressor to 100 bar is to push down with all my weight. And now it drained what air i had in the gun. And now you hook it to the gun and 0. I am so fed up with this as much as i spent on all this and have shot it three times. Contacted manufacture of the double shot if i get no answers there guess i have a bunch of expensive paper waits.

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Tolerance specs on male and female foster fittings must be in tenths of an inch rather than thousandths, because I have to use three different female foster QR fittings to either fit over, or fit tight enough, to fill about twice as many male foster fittings. I also have to occasionally replace the o-rings in the female fittings.

From your description(s) it sounds like there's nothing wrong with your shotgun, other than the fill nipple. Try another one.
 
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Tolerance specs on male and female foster fittings must be in tenths of an inch rather than thousandths, because I have to use three different female foster QR fittings to either fit over, or fit tight enough, to fill about twice as many male foster fittings. I also have to occasionally replace the o-rings in the female fittings.

From your description(s) it sounds like there's nothing wrong with your shotgun, other than the fill nipple. Try another one.
I can change the nipple on the gun without screwing anything up
 
I agree with AirNGasman, the tolerances differences on the QD fittings from different manufacturers must be atrocious. After a month of frustration and waiting for shipments I finally got my rifle running by getting the foster fittings from the same manufacturer. It would make things a lot easier if the threads for pump fittings and charging fittings were standardized.