Just back into kegging. In my first beer life I recall no issues at all and a C02 only got filled once in five years, a 10 pounder at that. This time I have a 20# bottle which showed 500 pounds garage (50's) temp when I hooked it up to the Birdman system. I transferred everything to the fridge and over a week or so the pressure has fallen to under 300#s. I have put soapy water on everything I can find (connectors,hoses, clamps, regulator parts, etc) and see no leaks at all, new o-rings all around ,btw. At this rate I will be out of gas in another week. Any ideas? Hooked a second keg up yesterday and did everything again.............no bubbles. Any sneaky leak locations I might be missing?