I came home yesterday to find an empty Coors Light Home Draft contraption on my porch. So naturally, I took it inside and grabbed my trusty Leatherman. I got a new one, btw. The one with locking tools. Is good, ya. Anyway.
After monkeying with it a while, I got on HBT and found this here thread. Sure enough, the CO2 cartridge holder comes right off with the help of channel lock pliers.
The tamper proofing on it is weak sauce. It's two plastic tabs that squeeze in as they pass over some spline like teeth. The teeth go one way and when you try to turn against them, the plastic tabs grab onto the spline/teeth. Using the pliers breaks the plastic tabs. The holder and the tap are threaded. The holder screws back in fine. I'm betting the tab to spline/teeth deal is just tamper proofing to stop people from reusing it. Maybe use some thread tape or a washer to snug it up if you feel like it.
Is pellet gun or paint ball gun CO2 safe to use with something I'm going to drink?