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Discussion Starter · #1 ·
My bubble counter is only about 1/4 full. The instructions initially said to keep it 3/4 full. Will it effect my CO2 injection if I just leave it low? I'm assuming it's only there to measure the CO2 (nothing else).
 

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Less water means it takes longer for the CO2 to build up pressure in the bubble counter. More water = less air volume. Once the air has been replaced by co2 it doesn't matter, just takes longer to start getting co2 bubbles to your tank.
 

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You can even let it totally empty, it doesn't effect the operation of CO2, it just lets you know what is going on. When I used water (which I recommend for inline as mine always ended up going up the tubing over time), I would fill it every few months, that would last maybe a month or so, and it would be dry. On my regulator mounted one, I use mineral oil which lasts forever and doesn't go up the line like water did.
 

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Yep, water evaporates quickly. I have to refill my bubble counter every 3-4 weeks. Still, I'm sticking with water. Paid too much for my regulator and inline diffusor to risk getting oil in either one.
 

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Discussion Starter · #10 ·
I also have a very expensive regulator / diffuser (GLA). Why is oil so hazardous? I really hate how quick the water evaporates from the bubble counter... is there any other alternative that won't put my equipment in jeopardy?
 

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I have found that the oil stays put and no water backs down from the in-line difuser. I did install a one way just in case though, it is between the counter and the difuser. The counter is mounted on top of the needle valve.
 

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I've never understood why even try to use oil when we're told we shouldn't in these. I too have a GLA regulator and there's zero chance I'd risk it. What does it take, 2 minutes to detach and fill water back in it if you want to use it to count bubbles?

Once you have it at your target CO2 point you can just let it evaporate and not refill if it is really tough to fill.
 

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I've never understood why even try to use oil when we're told we shouldn't in these. I too have a GLA regulator and there's zero chance I'd risk it. What does it take, 2 minutes to detach and fill water back in it if you want to use it to count bubbles?

Once you have it at your target CO2 point you can just let it evaporate and not refill if it is really tough to fill.
Maybe I am missing something but who says not to use it? I haven't looked into buying a bubble counter in a very long time but way back, some would actually come with some sort of oil or glycerin.
 

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Maybe I am missing something but who says not to use it? I haven't looked into buying a bubble counter in a very long time but way back, some would actually come with some sort of oil or glycerin.
"We're told we shouldn't"? What is this exactly about? Where did you get this?

If you saw "Use no oil" printed on the face of an oxygen gauge, it refers to the gauge itself. It does not in any way apply to the bubble counter.
I believe I saw it on the documentation that came with my system from GLA.

I personally don't use a counter any longer. Just never understood why it's hard to refill with water.

I believe the reasoning is that people newer to the hobby could possibly turn the co2 on for the first time with the needle valve open and potentially blast oil up the line into the diffuser which would ruin the ceramic.
 

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Discussion Starter · #17 ·
The bubble counter just makes me feel "safer" so I know it's on / off.

My CO2 stuff is behind the tank, so while I can see it easily, it's hard to get to - so putting water in bubble counter is a bit tedious even though it just involves unscrewing it.
 
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