I just got all the parts for my keezer together, and started assembling the CO2 today and there are leaks everywhere. All I have done so far is the regulator to the tank which is fine. Then the reg to a hose is good. Then it goes to a 4 way manifold that I bought pre-made, and it leaks everywhere. It is made up of 4 Ts, and 4 shutoff valves, and over half of the connections leak. I have tried tightening them, and they have Teflon tape on them. Anyone have some advice for me, or should I try to return it? I paid decent money for it, and expected it to work right out of the box.