An Easy Way to Increase Your Tank's pH with a CO2 Scrubber

Discussion in 'Do It Yourself (DIY)' started by CJO, Mar 9, 2011.

  1. renato120

    renato120 Well-Known Member Partner Member

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    ALK raises PH. If you have a doser, instead of dose once a day, you dose every three hours small amounts. Make sure you do the same with CA.
    My doser starts at 12am/3am/6am....... And it goes...... It doses for 8min. Not sure how many ml. Dose CA 30min after. 12:30/3:30...... Make sure you dont dose the same amount as you dose once a day. Brake that in a 24hrs period. Let me know if you understood.
     
  2. Ponraj A

    Ponraj A Well-Known Member

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    I have not dosed it, I bought the pellets and placed in an pepsi bottle with holes drilled in the bottom. A tube drilled in the top of the cap and other end of the tube connected to the outlet of skimmer air intake. As explained in this DIY with pictures. Give it a try
     
  3. neuwave

    neuwave Well-Known Member

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    Just a reminder: make sure your CO2 scrubber is sized for your skimmer. Many make the mistake of using a small water bottle in line with a skimmer with a high lph rate. This will result in exhausting the media quickly. Make sure your CO2 scrubber is the appropriate size for your skimmer.
     
  4. Ponraj A

    Ponraj A Well-Known Member

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    I have made my media filled for two weeks now and so far there is no any colour change. Thanks for the good note.:):):)
     
  5. Ponraj A

    Ponraj A Well-Known Member

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    WP_20160901_007.jpg

    Hi,
    I have just uploaded the image of CO2 scrubber hang in my sump with connected to the skimmer air intake.
     
  6. dangros

    dangros Well-Known Member

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    If I may add that I just received the two little fishers phosban reactor for this purpose. Cheap, fitting size fits perfect to the vertex omega 150 hose. Waiting for the BRS CO2 media to run this.
     
  7. Joey waid

    Joey waid Well-Known Member

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    You mention beer in your list of things needed.. What do you recommend? I love IPA's... How many does it take to get the full effect? Thanks for the help!!! Good write up too?..
     
  8. dangros

    dangros Well-Known Member

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    This didn't do squat for me. Pretty bummed
     
  9. neuwave

    neuwave Well-Known Member

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    Post the CO2 scrubber you made. Maybe the thread can help you figure out why. Because the vertex omega pulls approx 650 LPH ≤ Air-Draw ≤ 900 LPH. That's a fairly good amount of air being pulled through which can effect your results.
     
  10. dangros

    dangros Well-Known Member

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    I am using a phosban reactor and brs media. Here's the hookup
    IMG_8096.JPG
    IMG_8094.JPG
     
  11. neuwave

    neuwave Well-Known Member

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    Connections look good but How much media did you use? And what is your ph at currently?
     
  12. dangros

    dangros Well-Known Member

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  13. dangros

    dangros Well-Known Member

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    going to implement a Kalk Stirrer from Avast. Control the pH with my Apex. That will do it and forget this c02.
     
  14. jason2459

    jason2459 Not a paid scientist R2R Supporter R2R Excellence Award

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    I would not attempt to control pH at all like that. You will be for one limited by evaporation rates and could spike or increase alk way to high.
     
  15. dangros

    dangros Well-Known Member

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    not with a stirrer and a dedicated peristaltic pump and controller
     
    frenchie01 likes this.
  16. jason2459

    jason2459 Not a paid scientist R2R Supporter R2R Excellence Award

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    Trying to control pH is generally a bad idea. Boosting pH which this thread is one way to do it is fine. Dosing limewater for Ca and alk is good.
     
    Last edited: Sep 20, 2016
  17. jason2459

    jason2459 Not a paid scientist R2R Supporter R2R Excellence Award

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  18. dangros

    dangros Well-Known Member

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  19. jason2459

    jason2459 Not a paid scientist R2R Supporter R2R Excellence Award

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    Ok, the way I read it you were going to specifically try to control pH with limewater.

    A reactor will work but what were you doing before that the reactor will prevent spikes? And were they alk spikes I assume?

    FWIW I dosed kalk as ATO and would still have my pH drop below 7.9 at night which is ok but I prefered it not to so implemented a CO2 scrubber which helped that. A CO2 scrubber alone though could boost pH only a small amount.

    I switched to dosing limewater separate from my ATO and under evaporation amounts. Which for me I have it set at a rate of 1 second every 2 minutes to dose fully saturated limewater from a still reservoir with a 250ml/m peristaltic pump. This helped my pH the most and more then dosing limewater as my ATO.
     
  20. dangros

    dangros Well-Known Member

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    correct, my initial intent was to control ph but upon further review of Bruce's implementation, that is wrong. I will do it as he has. Unfortunately, the c02 has almost 0 impact on my pH so that is clearly not the problem but a waste of about 100 bucks and a lot of time reading. Live and learn - always in this hobby. I like the idea of Kalk in a stirrer and it's benefits for the tank. I dont know why my results w/the c02 sucked so bad. It's pretty disappointing but I guess I have a spare reactor if I ever need it.
     

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