So on our first kegging attempt we ran into a bit of a problem and we need advice. We kegged a Decemberfest but we didnt have a CO2 tank at the time and had to natural carbonate it. We threw in the sugar and let it sit for 3 weeks before we had the rest of our equipment. Since it was our first time we didnt really know what to look out for and it turns out we have a bad Oring and the keg leaks (we figured that out quickly when we pressurized the tank). We tapped the beer and its flat as we expected. What are my options for saving the brew. Can you force carbonate it even though its got priming sugar? I'd like to not throw it out if possible.