Before we get all technical, my bottle and reg are fine, everything is connected, its just a leak problem. My cousin decided to borrow my N2 tank without asking, he then screwed it into his gun (his trusty Tippmann 98, as he calls it) and he did something wrong, i went from a 4500 psi fill, down to 1000 psi and he didnt even shoot. He said no matter how far he turned it in it leaked air, and the less he left it out, then it didnt shoot. He went through 5 o-rings, and then I tried it on my marker. It never did that when its pressure was high, but now no matter how far you turn the tank in, it leaks. So besides me bashing my cousins' simian like head in, what can I do? It is a 47 cu, 4500 psi Nitro Duck steel tank. I just got it hydrotested, what can I do? Thanks.