DIY CO2--problem with check valve - The Planted Tank Forum
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post #1 of 2 (permalink) Old 12-11-2009, 08:37 PM Thread Starter
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DIY CO2--problem with check valve

So, I used the method with the syringe bubble counter/separator, but water from the 'bubble counter' is leaking down into the tube that connects to the 2L bottle. I know I put the valve in the correct orientation.

When I blow through it, no air goes through, but for some reason, liquid is still leaking through it. Any ideas why? I bought 2 check valves, and they both do the same thing. I squeezed the 2L bottle to double check that aI put the valve in the correct orientation, and I sure did. I saw lots of bubbles in the bubble counter.

What do I do? My mixture isn't producing any bubbles yet though; it has only been a couple of hours.
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post #2 of 2 (permalink) Old 12-14-2009, 02:14 PM
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I want to know the same thing. I have a glass check valve from Green Leaf and I have the same problem. Does a system typically need several check valves? But I have a regulator, so I really need to know how to protect it.
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