Simple question about how the arrows on check valves should be pointing
Alright, so, I know that the arrows indicate the direction of air flow that you want to make. Meaning that, you want them pointing away from the regulator.
However, with an inline bubble counter, should the check valve above the bubble counter also point up or should it point down (not sure if it pointing down would make it so that the contents of the bubble counter do not escape the bubble counter nor get a back flow of water into them accidentally.
I want to clean up my stuff since I do now have these check valves and I want to make sure I do it right. As it is now, I have both of my plastic check valves pointing in the same direction, but this has caused the bubble counter on one of my tanks to pretty much empty itself, and has caused the bubble counter on my other tank to have both mineral oil and water in it.
No water is going towards the regulator though, and the gas is flowing correctly, but I just wanted to check that there wasn't anything I could be doing better.