New member - my FX arrived

Added both of the small bottles per the manual, it had only been running 30 minutes. I figure it was run almost two hours during factory/AOA testing so they might have already added this. The water level was almost full, I added maybe a 3/4 cup of water. My Impact came with almost 250 BAR with the regulator set at 150 BAR. While my tank is filling, I am reading the manual and also giving the barrels a very good cleaning. The patches picket up a lot of factory crud, I soaked the patches with a high quality non-flammable cleaning product and pulled them about ten times thought, Then some dry patches until the patches ran clean. The dirtier patches were from the .30 barrel The Huggett makes a huge difference - I may put a few rounds through it tonight... 

Thanks for the input and advice guys. Mike, I am reading quite a few threads so point taken about 'tinkering' with the factory settings. More on my Compressor. It started quick but then stopped filling much beyond 1,800 PSI - it got to 1,000 in 20 minutes or so, then slowed down. Then nothing about 1,800 so I shut it down. I guess a few too many beers last night. So I forgot to tighten the fitting that attaches the hose to the Compressor. I finger tightened it and then started the compressor. Well, before I started the compressor today, I took a wrench and tightened almost a full rotation. Not saying I used full force on the wrench, just tightened to what seemed a prudent tightness. Now my tank is filling up fast again.

I ran the Omega for about 3.5 hours and last night and therefore wasted 2.5 hours of run time because of a loose fitting. Still have not fired my Impact. But the morning was not wasted. The 'rapid fire' target was shot at about one round per second maybe a tad faster. And I did better (save for a few understandable fliers) than my other targets, which were shot slow - one round every 2-3 seconds, with at least one short break between each magazine, sometimes a quick lower of the gun and then resight in the middle of a magazine. I shoot better with both eyes open at about one second per round. This with full power 230 grain Federal HST. 

I need your help guys. I have the 75 Cubic Foot Omega air cylinder with an HP3 “upgraded” valve. They said it was an upgrade and would make things easier. The picture below shows the tank and the hose it came with. I have three questions: 

1. I think they gave me the wrong hose attachment. How do I fill my Impact with this equipment? I can easily fill my Impact direct from the compressor because the compressor hose has a female foster fitting that would go directly into my Impact. Five minutes into the video below, he shows how to fill a rifle using the upgraded HP3 valve, but the hose he uses has a female foster fitting on both ends. One side of the hose he uses in the video snaps over the male foster fitting on the tank, with the other side going into the gun. I think they forgot to send me a hose with a female foster fitting on each end. From the picture, I think they gave me a “DIN” hose system right?
2. What is the brass fitting? You can see that on the left hand side of the HP3 valve. The right side of the valve is the male foster fitting. I did fully un screw and remove the brass cap and nothing happened. Could this be the bleed value? If so, the ignore question three below. 
3. Assuming that my issue is that they shipped the wrong hose with the tank, and I get the correct hose this week, then how would I bleed the hose once I finish filling my rifle? I would attach one side to the foster fitting on the tank and the other side to my rifle. Then I would slowly loosen the black knob at the top of the tank to allow air to flow from the tank to the rifle. You can’t see from the picture below, but there is a large gauge facing the carpet. This gauge show how much pressure is in the line. The small black gauge shows the pressure inside the tank. So once my rifle gets filled, I would close the black knob on top of my tank and then what? Would I simply unhook the hose from the tank and the rifle?
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Guys, I paid $680 for the tank because AOA suggested that I get the HP3 valve, which is an upgrade over the standard DIN fitting. The tank with the standard DIN fitting costs $550 dollars. The DIN set up is great if you do not have a Compressor and have to get your tank filled at a dive shop. I gather the DIN fitting is standard SCUBA stuff while the foster fittings are paintball and PCP specific.

Take a look at the DIN fitting on one side of the hose they gave me. Or are you guys are suggesting that I remove the DIN fitting from the hose? Not going to work around their error by jury rigging a $130 upgrade. No big deal because I can fill my Rifle direct from the compressor while I wait for the correct hose - I watched the video again and they were using a hose with two foster fittings with the HP3 valved tank - so should have sent me a hose with two female foster fittings. If this is the worst thing that happens to me today then it has been a pretty good day. I am guessing that they don't sell many of the HP3 valve upgrades, which add $130 to the price of the Omega 75 cubic foot tank with the standard DIN fittings. I suspect most people do not purchase compressors, so they would need a tank with a DIN fitting in order to fill their tanks at SCUBA shops.

​I am betting that the person that packed my order grabbed a DIN hose to go along with the Omega tank because they almost always send Omega tanks with DIN fittings. Force of habit in a busy work environment, I can see how this could happen. No big deal. I thought I was doing something wrong because 30 hours ago I was exclusively in the powder burning realm.