I am kegging my first batch and I have excessive foam I am using 5/16 line for my out I forced carbonated at 21 psi at room temp for 24 hrs however I did shake it around moving it around. Did doing this over carbonate it or are my lines too big? I tried a 3/16 line and got no flow at 10 psi serving pressure. Does line length matter because I think I'm going to go to the middle and get 1/4 inch line or did I simply just over carbonate it and if so how do I solve this problem?