I've been through this every time I keg, so I'm putting it out there since it's driving me nuts...I hook up the picnic tap and the gas line. But when I turn on the gas the pressure immediately shoots to 50-60 and literally forces beer out the CLOSED picnic tap. I try releasing the pressure, adjusting the screw, EVERYTHING, but I can't get the pressure down below 40. So what am I doing wrong? This is maddening!