So glad I got one! So my keg is leaking through the pressure relief valve. It leaks at about 20 PSI. Enough to dispense but not to carb. My buddy is in town for the weekend and I had to show off the homebrew. What to do? Carbonater cap to the rescue!!! Chill a 2 liter for a bit, hook up the CO2 tank and shake for a bit. Worked great. If your thinking about buying one or making one...DO IT!!! Saved the weekend for me. AND THE BEER IS FANTASTIC! The wheat turned out fantasic! I was gonna fruit it but I refuse to its too good without it.