How to use our keg lid for your carbonating？ 1. Filled the keg with beer and put the the sanitized carbonation lid on 2. Put your co2 up to 30 psi in the post on the keg to set the lid. Then purged the keg of oxygen 3. Set the co2 to about 8psi until not hear it filling the keg any longer and then removed the co2 line from the keg post and put it on the lids post 4. Set it at 4 psi. Then raised it 2 psi every hour until about 12psi 5. Letting the keg with the carbonation lid do its job for about 24 hours 6. Purged the keg and removed the lid for storage. Put your regular lid on and turned your co2 back up to 12 psi Features: ★ Can use for carbonation or as a replacement for your worn out keg lid ★ Attached the gas line setup to the ball lock keg post on the carbonation lid ★ Pre-boil the stone for 2-3 minutes before using. This assures you that your stone is sterile ★ Pressure relief valve opened up at 70 psi,you also can manually release by pulling up on the pressure relief valve Package : 1* Carbonation Keg Lid 1* Diffusion Stone 1* 20 Inch Hose