5 gal keg ball lock. In a keezer at 35 deg. 30psi for three days then set it down to 13-14 psi for two days I have an 8ft line. Beer is dispensing great taste awesome but there is little to no carbonation. I should be getting a CO2 vol of 2.6. Anyone have any ideas what going on? And I did a leak check I don't have any and the CO2 tank is new first time filled.