JBJ Bubble Counter Leak
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Old 01-10-2010, 10:46 PM   #1
Darkblade48
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JBJ Bubble Counter Leak


For anyone that is using the JBJ bubble counter, do you notice that if you use pipe dope (pipe compound) between the 1/8" connection of the needle valve and the bubble counter, that there is a leak? I am noticing that there is a very slight (but noticeable with soapy water) leak at this connection. I am wondering if it has something to do with the pipe compound vs. the teflon tape (I am using pipe compound right now)

I have already tightened this down as far as I can with a relatively long wrench, so...

Let me know your thoughts.

Edit: Here is a (blurry) picture showing you where the leak is occurring (Q-Tip is pointing to the joint that is leaking; image is clickable to enlarge).

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Old 01-10-2010, 11:01 PM   #2
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I had the JBJ bubble counter leak from that same connection as well. What I found that fixed it is if you take the bubble counter off, there is a small lip inside the bottom of the bubble counter. I fitted a small rubber o-ring there and had no more problems with leaks. You might want to try that if you can't get it to seal any other way.
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Old 01-10-2010, 11:15 PM   #3
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I found some interesting posts from awhile (4 years ago) back.

http://www.plantedtank.net/forums/eq...tml#post256515
http://www.plantedtank.net/forums/eq...e-counter.html

It seems that the black-O-ring that I thought goes on the brass cap (the part that the airline tubing goes through) is supposed to go to the bottom between the needle valve and the bubble counter?

However, other posts I have found show that the O-ring is supposed to go at the top (namely, the first picture in this thread)
http://www.plantedtank.net/forums/eq...tml#post631904

Also, the last paragraph/picture in this post here:
http://www.plantedtank.net/forums/di...tml#post880442
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Old 01-11-2010, 12:04 AM   #4
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The O-Ring go's between needle valve and bubble counter.
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Old 01-11-2010, 05:26 AM   #5
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Thanks for the reply Orlando!

When I purchased my JBJ counter from the seller on eBay and opened it from the plastic packaging, the O-ring was at the top, and not that the bottom, hence I just left it there, assuming it was in the right spot

Edit: So there should be no O-ring between the brass cap and the airline tubing?
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Old 01-12-2010, 02:26 AM   #6
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Well, removing the O-ring from the brass cap and putting it at the bottom between the bubble counter and the needle valve seems to have fixed it!

Interesting that the O-ring was at the top with the brass cap when I opened the package!
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A Primer to Pressurized CO2 and A Primer to Planted Tanks
Eheim Pimp #362 - Eheim 2213 x2, Eheim 2028, Eheim 2217, Eheim surface skimmer and Eheim autofeeder.
Victor Pimp #33 - HPT272-125-350-4M
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Old 03-10-2010, 05:45 PM   #7
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hey i had the same same problem today from jbj bubble counter from ebay, i also assumed that the o ring goes on top. BUT its not just leaking air...its also leaking water! i wonder if its because i filled the counter up full? though i dont think filling it full is even relevant no?
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Old 03-10-2010, 05:51 PM   #8
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They package it with the o-ring on top so it stays in place.

gogreen... shouldn't matter. If it's too full the liquid would just go out with the gas.

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Old 03-10-2010, 06:04 PM   #9
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ugh i was afraid to hear that now i have to wait a few more weeks to get a new bubble counter before i start using co2 sigh.
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Old 03-30-2013, 07:01 PM   #10
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sorry to dig out this thread. But regarding the o-ring in JBJ regulator set , can anyone clarify this if it should be at the top of the bubble counter or bottom ?
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Old 03-30-2013, 07:40 PM   #11
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I have used it on the top and the bottom with no problems.

I currently have it at the top.
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A Primer to Pressurized CO2 and A Primer to Planted Tanks
Eheim Pimp #362 - Eheim 2213 x2, Eheim 2028, Eheim 2217, Eheim surface skimmer and Eheim autofeeder.
Victor Pimp #33 - HPT272-125-350-4M
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Old 04-01-2013, 04:00 AM   #12
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I used it at the bottom always.
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Old 04-03-2013, 05:59 AM   #13
youdontknowme
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emailed JBJ to ask about this and they said it should be placed at the bottom of bubble counter .
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Old 04-03-2013, 06:00 AM   #14
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Well , now we know for sure
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A Primer to Pressurized CO2 and A Primer to Planted Tanks
Eheim Pimp #362 - Eheim 2213 x2, Eheim 2028, Eheim 2217, Eheim surface skimmer and Eheim autofeeder.
Victor Pimp #33 - HPT272-125-350-4M
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Old 04-03-2013, 06:24 AM   #15
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Default Re: JBJ Bubble Counter Leak

Um, all of the JBJ counters I have got 2 o-rings, top and bottom. O..o mine cold be Mr. Aqua brand.


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