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Splitting CO2

Discussion in 'CO2 Enrichment' started by scottward, May 4, 2010.

  1. scottward

    scottward Guru Class Expert

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    Hi,

    What is the best way to split CO2 to feed into 2 different locations? I would like to feed some CO2 into my AM1000 and also some CO2 into an in tank powerhead for a little misting action.

    Currently, I have it connected up like this:

    CO2 bottle -> Regulator -> Solenoid -> Needle Valve -> Bubble Counter -> T-piece
    - branch 1 goes to AM1000
    - branch 2 goes to a second Needle Value -> powerhead

    I get a good balance for a while, but, eventually the back pressure (I suppose) changes somewhere; then the AM1000 gets all the flow.

    Would I be better of splitting immediately after the solenoid when the gas pressure is higher, and perhaps feeding into 2 parallel needle value/bubble counters?

    Or do I really need a regulator with dual outputs? ;-) I think I already know this is the best way to do it - but is there a reasonable alternative with the parts I already have?

    Scott.
     
  2. argnom

    argnom Guru Class Expert

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    I've tried it before, the best way I found was this way:

    CO2 bottle --> Regulator --> Solenoid --> T --> 2 needle valves --> 2 bubble counters

    That is if the lights on both tanks have the same schedule.

    If not, I would proceed this way:

    CO2 bottle --> Regulator --> T --> 2 solenoids --> 2 needle valves --> 2 bubble counters

    Hope this helps.
     
  3. Left C

    Left C Lifetime Members
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    Here's some pictures of fordtrannyman's regulators that feed multiple tanks. These are similar to argnom's first example except they are feeding more than two aquariums.

    [​IMG]

    [​IMG]
     
    #3 Left C, May 4, 2010
    Last edited by a moderator: May 4, 2010
  4. Biollante

    Biollante Lifetime Charter Member
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  5. dutchy

    dutchy Plant Guru Team
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    I had the same problem as you. One was working or the other. Now I'm using two separate systems. Double bottles last twice as long. They never get empty at the same time.

    regards,
    dutchy
     
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