well I contacted DLX and they are sending me a new manifold and screw, it took one minute and eighteen seconds on the phone to solve the problem, great customer service. I just had to email them my address.
I will be able to use the gun as is for nationals they told me it wouldnt hurt the gun but I may experiance a little louder shot until i replace the manifold.
Cheers to DLX, makers of (in my opinion) the most beautifull and luxurious paintball markers on the market.
And thanks to all of you for your help with this issue.
Now I cant wait to go and get me sum G's