Okay, I have a slightly different issue that just occured with my beer gun. I have been using my beer gun for about one year now. I have bottled and have been able to figure out how it best works, not too much foam etc.. I had a double IPA on tap. Carbonated in the keg for 2 months, just letting it sit. I hooked up the Blichmann gun, had it set right. I used a glass to run the line out so that the foam was looking good. The carbonation was real good. I bottled the keg, waited a week and now it is flat. I used new caps and used the same procedure that I used before with no problems. anyone have any idea why the bottles are flat.