UP inline co2 atomiser not working - The Planted Tank Forum
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post #1 of 20 (permalink) Old 04-10-2018, 07:41 AM Thread Starter
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UP inline co2 atomiser not working

I have an in-line co2 atomiser connected from my co2art regulator at 40psi and I am not seeing any bubbles or misting. My drop checker stays blue. Checked with soapy water for leaks and there are none. My bubble counter seems to slow right down even though it’s fully open. This would seem to me to be pressure but I thought 40 psi is plenty. Any thoughts?

I noticed some condensation or moisture within the chamber of the atomiser but it’s a complete unit so can’t open it at all.
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post #2 of 20 (permalink) Old 04-10-2018, 07:46 AM
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Do you have a check valve? Is it installed in the right direction?

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post #3 of 20 (permalink) Old 04-10-2018, 08:22 AM Thread Starter
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I did have a check valve but that was removed during my checks, although it was in the right way.
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post #4 of 20 (permalink) Old 04-10-2018, 08:33 AM
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I am having the exact same problem with a 1/2" Up Aqua. I temporarily installed in tank diffuser so that I can figure it out later. I got my pressure to 60 psi with a wide open needle valve.

I assume you soap tested the bubble counter and the atomizer's connections?

I got mine several years ago and just cannot remember if it ever worked. Rats.

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post #5 of 20 (permalink) Old 04-10-2018, 09:38 AM Thread Starter
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Yes I have soap tested all the connections and there are no leaks. I am wandering if it’s a faulty or blocked unit. The regulator I have doesn’t allow me to increase the pressure. I am thinking of purchasing another unit to try that but would rather not.
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post #6 of 20 (permalink) Old 04-10-2018, 01:44 PM
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Maybe a quick test to verify CO2 is actually reaching the diffuser? Pull the diffuser off and see that CO2 is coming out in the water without it and then it will be diffuser problem or you will be closer to finding it?
You may have already done this but sometimes I get so involved with thinking that I forget to think clearly!!!
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post #7 of 20 (permalink) Old 04-10-2018, 03:45 PM Thread Starter
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I haven’t specifically tried this as I can see bubbles (gas) going through my bubble counter and then it’s just tubing all the way to the in-line diffuser. This setup works fine with an in tank diffuser, the only difference is now using in-line diffuser.

However I will check this when I get home, I guess it’s proof either way like you say.
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post #8 of 20 (permalink) Old 04-10-2018, 04:05 PM
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Quote:
My bubble counter seems to slow right down even though it’s fully open. This would seem to me to be pressure but I thought 40 psi is plenty.
Quote:
The regulator I have doesn’t allow me to increase the pressure.
sounds like a combo of "not exactly" 30psi out and a stubborn atomizer..

suggest a different brand atomizer over the new reg BUT may want to verify outlet pressure is 30-ish..

also you may be able to increase set pressure ..BUT that is another story.

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post #9 of 20 (permalink) Old 04-10-2018, 04:12 PM Thread Starter
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The gauge on the regulator says 40 psi when the solenoid is on, 45 psi when it switches off.
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post #10 of 20 (permalink) Old 04-10-2018, 04:18 PM
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As per my post above, I have the same problem as OP.

Except I did go up to 60 psi with fully opened needle valve and I then switched over to in tank diffuser that works.

To me, the atomizer is clearly acting as a road block.

Btw, I have 2 other identical atomizers except for the 5/8" size. One is working and another in storage.

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post #11 of 20 (permalink) Old 04-10-2018, 04:24 PM
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I have seen this all the time with those in-line atomizers. I have several of them. If one doesn't work I go to the next one an then the next one and one usually works at the same output pressure. They are just poorly designed and your better off with in-tank diffusers.
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post #12 of 20 (permalink) Old 04-10-2018, 05:44 PM
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Did you give it some time?. It takes time to build the pressure inside the diffuser. After that, if it still not diffusing open a little bit more the valve.. but itís important to give it some time (to adjust) in every step or every time you open the valve..


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post #13 of 20 (permalink) Old 04-10-2018, 06:15 PM
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It does sound like the diffuser is the suspect but then it always pays to be careful to check any other potentials as it can be things that are easy to miss. One is that tubing is really easy to mess up the end on some fitting types. Not too hard to actually squeeze the fitting too tight when we are nervous about leaving a leak. compressions fittings vary but there are some which you can tighten down too hard and it totally blocks the flow where it squeezes the tubing shut. Not likely but worth a look when other points are leading you nowhere. It's an easy thing to spot on copper tubing but since plastic bounces back it can be less obvious.
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post #14 of 20 (permalink) Old 04-10-2018, 07:14 PM
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It's definitely the diffuser. As I have several of them as mentioned and I sometimes go through 3 to get one to work. I also find the fluval co2 black in-tank diffuser has a similar issue. I have at least 3 of those. And I don't change any settings I just change the diffuser and it works.
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post #15 of 20 (permalink) Old 04-10-2018, 07:28 PM
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Mr Trash Can meet Mr Up Your Aqua.
Just a bummer.

@houseofcards: at least my diffuser does not hiss

@PlantedRich: thanks for watching over my sanity
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