So I went the cheap route when purchasing a CO2 regulator and purchased the lowest end one available at Northern Brewer. I typically force carb my beer test and drink. However, I need to jump start my keg every few drinks so that it keeps flowing. I do not keep my beer connected to the CO2 because my tank is too big for my fridge. I feel like the lack of a consistent pressure might cause my beer to go flat after initially being carbonated. Is that possible? What is the best method if I can't keep my beers connected to the CO2?