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Thread: Help how to set up carbondoser ph/alkalinity

  1. #1
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    Help how to set up carbondoser ph/alkalinity

    Hey guys I'm trying to figure out how to set up my calcio reactor and I really need some help & If someone could show me how to control the ph inside the reactor and also in controlling the alkalinity in the system using the apex fusion.I'm using a dual calcio reactor http://www.marinetechnical.com/page12.htm
    And a electronic Carbondoser from aquarium plants
    Everyday my kh is dropping 0.3
    This is how is programing the Carbondoser to my apex


    Fellback off
    Set off
    If ph2 > 6.45 them on
    If ph < 7.90 Them off


    Set bubble count #2 pressure to 12 psi
    Set effluent at 30 ml x minute


    My water parameter are
    Kh 8.6...(yesterday was 8.9)
    Ca 430
    Mag 1300


    I really appreciate any help


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    My tank is 400 gallons sump 150.

  3. #3
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    You are probably going to need a lot more flow than 30ml/min for a 400 gallon. I ran 40ml/min in my 125 gallon at 6.6 pH (I adjusted pH rather than effluent flow) and I didn't have a lot of SPS.

    You might be an engineer if...You have no life and can prove it mathematically.

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    Quote Originally Posted by zombie View Post
    You are probably going to need a lot more flow than 30ml/min for a 400 gallon. I ran 40ml/min in my 125 gallon at 6.6 pH (I adjusted pH rather than effluent flow) and I didn't have a lot of SPS.

    You might be an engineer if...You have no life and can prove it mathematically.


    so I just have to increase the effluent ?

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    Quote Originally Posted by snipersps View Post
    so I just have to increase the effluent ?
    When you increase the effluent, the bubble count also needs to go up in order to still maintain pH.

    Your graph of pH for pH 2 is consistent at your setpoint currently right?

    You might be an engineer if...You have no life and can prove it mathematically.

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    Ok I'm going to double the effluent and double the bubble too
    here's my apex graf
    Attached Images Attached Images

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    To be honest I have no clue what to do I've tried many things and nothing seems to work. this was my Apex configuration last week
    If phEfluent < 6.45 off
    If phsystem < 7.90 off


    And it was adding effluent 75 ml x minute carbon dosing was programed for 80 bubbles a minute and In the secondary pressure it was open at 12 psi


    Note: I was checking how much time the carbon doser was turned on making bubbles and it would be one for 8 seconds and it would be off for 8 minutes my alkalinity was 8.7 then dropped to 8.2


    I made a new program yesterday
    Morning


    If phEfluent < 6.30 off
    If phsystem < 7.90 off


    Secondary pressure 13 psi
    80 bubbles a minute
    Effluent 35ml x minute


    My alkalinity today is at 7.8


    Note:
    If you wanna know why the ph in my calcio reactor is so low its because i spoke with 2 little fishes and they said that the media is going to be melting around 6.35 or 6.4


    Please any help would be appreciated thank you

  8. #8
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    You must have made a typo when you showed the config you have it now. There is nothing to turn it on in what you showed.

    Take a test sample of the effluent and measure the dKH. What does it read?

    You might be an engineer if...You have no life and can prove it mathematically.

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    Sorry I made a mistake the 6.30 is suppose to be on
    and my dkh was 26

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    Your code should be

    If pH > 6.30 Then ON
    If pH < 6.30 Then OFF
    If pH > 7.50 Then OFF


    If your target is 6.3 with a 0.03 pH hysteresis and the 7.5 acts as a failsafe.

    You might be an engineer if...You have no life and can prove it mathematically.

  11. #11
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    Your effluent dKH seems good though. You want to target anywhere between 20 and 40.

    Sounds like you just need more effluent flow. Try 60ml/min for a few days and see where that gets you.

    You might be an engineer if...You have no life and can prove it mathematically.

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    Ok I'm going to fix my code.

    Just to let you know yesterday my effluent dkh was 13 and today is 28 so basically I'm not going to touch anything I just to add alkalinity cause is low and I like to keep at 9.0

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    Quote Originally Posted by snipersps View Post
    Ok I'm going to fix my code.

    Just to let you know yesterday my effluent dkh was 13 and today is 28 so basically I'm not going to touch anything I just to add alkalinity cause is low and I like to keep at 9.0
    If you have any 2 part, you can add enough of that to raise alkalinity back to where you want it (just don't exceed 1 dKH change). That way the reactor doesn't have to play catch up if 60ml/min isn't enough.

    You might be an engineer if...You have no life and can prove it mathematically.

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    So the first 2 ph are PH effluent right?
    just want to make sure

    if ph effluent > 6.30 then on
    if ph effluent < 6.30 then off






    QUOTE=zombie;143163]Your code should be

    If pH > 6.30 Then ON
    If pH < 6.30 Then OFF
    If pH > 7.50 Then OFF


    If your target is 6.3 with a 0.03 pH hysteresis and the 7.5 acts as a failsafe.

    You might be an engineer if...You have no life and can prove it mathematically.[/QUOTE]

  15. #15
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    All three are effluent in addition to the system pH line you have. That third line is meant to shut the reactor off if there is a major problem like the effluent flow goes waaay up or the probe fails.

    You might be an engineer if...You have no life and can prove it mathematically.

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    Quote Originally Posted by zombie View Post
    Your code should be

    If pH > 6.30 Then ON
    If pH < 6.30 Then OFF
    If pH > 7.50 Then OFF


    If your target is 6.3 with a 0.03 pH hysteresis and the 7.5 acts as a failsafe.

    You might be an engineer if...You have no life and can prove it mathematically.
    So would the solenoid constantly be turning on/off as it teeters 6.29-6.31.

    And does that matter if we are using an AP carbon doser?

  17. #17
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    Quote Originally Posted by Makers Marc View Post
    So would the solenoid constantly be turning on/off as it teeters 6.29-6.31.

    And does that matter if we are using an AP carbon doser?
    It will turn on and off fairly often. With the right bubble count I had mine on a 15min on 15 min off cycle when I had a carbon doser. The carbon doser will not wear out from frequent on/off cycles like a traditional solenoid.

    You might be an engineer if...You have no life and can prove it mathematically.

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    Thank you for keeping an eye on the thread been Alot of help

    I have another question so do I have to make a fourth line for the ph system control? (Ph tank)
    Or is it not necessary?

    I checked my dkh today and it was the same as yesterday 26 and the alkalinity in the tank went down from 7.6 to 7.5
    I know that's some progress because it used to go down daily by five thank you


    Quote Originally Posted by zombie View Post
    All three are effluent in addition to the system pH line you have. That third line is meant to shut the reactor off if there is a major problem like the effluent flow goes waaay up or the probe fails.

    You might be an engineer if...You have no life and can prove it mathematically.

  19. #19
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    Yes. Three lines for effluent pH plus one for system pH.

    You might be an engineer if...You have no life and can prove it mathematically.

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    Could you possibly make a program Line for ph system as well its just that I'm not to sure about the numbers I should be using
    Thank you


    Quote Originally Posted by zombie View Post
    Yes. Three lines for effluent pH plus one for system pH.

    You might be an engineer if...You have no life and can prove it mathematically.

  21. #21
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    Quote Originally Posted by snipersps View Post
    Could you possibly make a program Line for ph system as well its just that I'm not to sure about the numbers I should be using
    Thank you
    It depends on what pH is typical for your system. You want it 0.1 to 0.2 below the lowest pH you observe on your system normally.

    You might be an engineer if...You have no life and can prove it mathematically.

  22. #22
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    Usually my ph system is
    Low 7.92
    Hig 8.08

  23. #23
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    Then 7.8 is probably a good bet.

    You might be an engineer if...You have no life and can prove it mathematically.

  24. #24
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    Quote Originally Posted by snipersps View Post
    Usually my ph system is
    Low 7.92
    Hig 8.08
    IMG_4600.jpg

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    Ok

    if ph system < 7.80 them off

    like that ?

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