I have been kegging my beer for about the last three batches. I can't seem to get it to carbonate. I've let it sit for two days plus at 30 psi...meh, I've also tried the rocking it back and forth for fifteen minutes at the same pressure(as per Craigtube)... meh. Although I have had moderate success with that method. Now don't get me wrong I'm still drinking my cold barley juice, and its delicious, I'd just like a little fizz. Help please!