I've got a BUNCH of these things that my friends drink.
I pulled oned apart just to see what its made of. The inside has what looks like its OWN Co2 dispenser inside ! But there is only the ONE hole on the top of the keg(the faucet). How the hell would I get more beer in there and preasurize it ??
I'm thinking I could drill a hole, and attach a fitting that I could attach to my Co2 tank. I could use this hole to fill it with beer as well. Whata u guys think ? what kinda fitting would I use ???