Join Date: Jan 2004
Location: Las Vegas , Nevada
I went thru this stage before couple months ago. It took me the whole night to figure out where the leak was (and another all nighter the following week). Well, assuming your mixture is ok, then:
What kind of bottle do you use? I tried different kind of bottles and end up using the old reliable coke 2L bottles. Some bottles are not air tight (the caps). It would pass all kind of test (submerge under water, etc) but couldn't hold enough pressure before it leaks.
Do you use any T-connector? I had a leak on the T before. This was the last place I could imagine leaking. I found out that some T conn. doesn't have smooth round ends. A little bump there could cause leak. I ended up seal all the connector with silicone (you can always peel it of next time).
Do you use a bubble counter or gas seperator? If you do, disconnect it first and run the tubing straight from the bottle to the tank.
Look for the leak step by step. You can run the tube straight from the bottle to the tank without any connector and check valves. If bubble comes out, then the leak must be somewhere in between. If this is ok, then you try using one of the connector. Add the device one by one until you find the leak. If the mixture is correct and has been there for days, it won't take long to start bubbling in your tank (20-30 minutes max).