Bubble counter keeps draining
I have a 10g high tech set up with a Green Leaf Aquariums Atomic Paintball CO2 Regulator with Atomic CO2 Bubble Counter - with Integrated Check Valve. Every time I fill the counter it drains back into the tank, I even tried adding another check valve between the tank and bubble counter, also between the diffuser and check valve but it still drains down. I'm positive I have the bubble counter the right direction.
Anyone have any ideas why it would be doing this?