So I got myself another CO2 kit for my tank, and I got it all set up.. and then when I started the CO2 flow, the bubbler thats full of water emptied into the tank. So I switched the tubing on the bubbler and tried again. It didnt drain as fast, but it sprayed a little bit of water out of the connections and then emptied itself again over night. Do I have the tubes on the wrong way? The tube on the valve on the co2 cartridge goes into the bubbler on the side that has the arrow facing away from the bubbler. The tube that goes to the diffuser is on the side with the arrow pointing into the bubbler. (If that makes any sense, its a Fluval CO2 kit for 45g) Before it dumped out the first time, the tubes were switched from how I described them above. But after I switched them, the water still dumped out. Im sorry if this is a little hard to understand, Ill clarify if needed and send pictures too if that'll help. Just let me know. Thanks for the help again!