Hanover Aquariumt ,

Co2 Working Pressure

Discussion in 'Equipment' started by jimi, Jun 21, 2012.

  1. jimi New Member

    Member Since:
    Feb 22, 2012
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    Location:
    UK
    Hi Guys,

    I am a bit concerend. Over the last few days I have noticed the working pressue, when the solenoid is off, is higher than it used to be. It used to sit on 5 and drop down to 2 when it started now it sits on 6 and drops down to 2 when it is started.



    I am using a diffuser which I found full of water the other day which had caused the line to blow off at the check valve.

    Shoud I be worried about this?

    It is an Azoo model (metallic blue cap where the working pressue valve would be with Azoo printed on it) that does not have a valve to change the working pressue. Please help on this as I am very worried.



    Jimi
  2. ShadowMac ASW Columnist

    Member Since:
    Mar 4, 2010
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    Location:
    Grand Forks, ND
    If the pressure were to climb too high there should be a emergency relief valve that will vent off the excess gas, so it shouldn't be dangerous. One of my regs got too high once and gassed out all my CO2 one day. I didn't notice the high working pressure when I switched tanks.

    If you are concerned you can turn down the working pressure. The important thing is the pressure is maintained while in operation or doesn't lower. It may be just a cheaper regulator that doesn't do well with the pressure change as the tank gas decreases. High quality regs deal better with that pressure change, dual stage regulators being the ideal option. That being said I don't own a duel stage reg and don't have this issue. It doesn't happen in my cheapo reg either...but I really dont watch it closely just the bubble count.
  3. jimi New Member

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    Feb 22, 2012
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    Well there is no working pressure valve. it is a dual gauge one its just that its changed from sitting at 55psi to 60psi
  4. ShadowMac ASW Columnist

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    Mar 4, 2010
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    Location:
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    if there is no working pressure valve then what you really have is a flow regulator and not a pressure regulator. That is what my cheap regulator is too. I wouldn't be concerned with the increase. If the pressure relief valve releases gas, which would be a loud hissing sound, then I would think about a new regulator.

    By dual stage I did not mean dual guage. Dual stage refers to the inner workings of the regulator. If you wish to learn more (and maybe more than you wish to learn :)) check out this link: http://www.barrreport.com/showthread.php/6470-Dual-Stage-Regulators
  5. jimi New Member

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    Feb 22, 2012
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    ok thanks Mac, thats great :)

    Jimi
  6. John N. Administrator

    Member Since:
    Oct 30, 2007
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    Sounds like your CO2 tank is due for a refill with such fluctuations.

    -John N.
  7. jimi New Member

    Member Since:
    Feb 22, 2012
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    It was only filled a little while ago and the tank pressure has not changed
  8. Shadow Moderator

    Member Since:
    Aug 8, 2008
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    Location:
    Singapore
    Look at the main pressure it should be around 1000psi. When it drop around 200, its mean time to refill. Normally your bps will start to show unstable although your working pressure still show 30-40psi.
  9. Left C New Member

    Member Since:
    Feb 27, 2008
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    Location:
    Burlington, NC
    I used to use two Azoo regulators. Their needle valves wouldn't hold a consistent and steady bubble count. I had to readjust them all the time. After several months I sold them and built my own regulators. Those Azoo regulators worried me so much that I used pH controllers with them. When I started using the ones that I built, I didn't need the pH controllers. Timers were all I used.

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