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. jason2459

    jason2459 Not a paid scientist R2R Supporter R2R Excellence Award

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    Well, to be clear CO2 has everything to do with pH. There was just something that interfered with allowing the CO2 scrubber you used from removing enough CO2 from your tank for you to notice a difference. Do you have a lot of surface agitation? CO2 in your house could be extremely high. You can do an aerating cup pH test with it in your house for at least 15 minutes. And then take outside for at least 15 minutes.

    I'm not very familiar with Ca reactors as I've never needed to use one but couldn't they also potentially drive down pH?

    How fast did the Sodalime change colors to purple? You should easily start seeing a change at the bottom in a couple hours. My BRS reactor full of sodalime lasts a few days to a week depending on how much air flow I dial it in to.
     
  2. neuwave

    neuwave Well-Known Member

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    Jason is correct that CO2 directly impacts your ph. From the looks of it your not having enough air contact time with the media. Especially with that high of a air flow between 650 to 900 lph. Since we don't know what level of co2 is present in your house we have to estimate. The speed of the air flowing over your media and contact time the air has with the media. I would have suggested with your setup to use two canisters piped in parallel. Allowing for more contact time.

    Here is an example setup.

    [​IMG]

    Connection of canisters:
    [​IMG]
     
  3. jepuskar

    jepuskar New Member

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    I am currently running a CO2 scrubber from BRS, single canister, using it inline with my airline ran from the inside. Gives me another .1 - .15 increase in PH so I run 8.2 with a CO2 level of 1000ppm in the house...not to bad.
    The OP mention AirGas...I just called my local Airgas store and they had no idea what I was talking about. Where do you guys get yours? The 1 canister lasted a week, even with ~300ppm Co2 running through it. I do run my skimmer 24/7, so I'm looking to source this cheaper.

    Thanks,
     
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  4. Aceone

    Aceone Well-Known Member R2R Supporter

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    I get the 3lbs bags at shopmedvet.com at $8.95. I usually get 6 and last about 3-4 months. Anywhere cheaper please let me know LOL
     
  5. jason2459

    jason2459 Not a paid scientist R2R Supporter R2R Excellence Award

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  6. jason2459

    jason2459 Not a paid scientist R2R Supporter R2R Excellence Award

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  7. neuwave

    neuwave Well-Known Member

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    That's a pretty good price. Roughly w/shipping that's $2.62 a pound. As long the 5 gallon totals 37lbs of media. Air as has told me a couple years ago they were no longer selling the sodalime and selling off their remaining stock. Wish they didn't because once I get was able to haggle the price down to $60 for a 5 gallon bucket (37lbs). They never had a solid set price. Sometimes you can find eBay sale for 32lbs with free shipping which comes out to $2.50 a lb.
     
  8. Trizzino

    Trizzino Active Member

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    I will be converting my extra TLF phosban reactor into a co2 reactor after reading through this thread. I'm interested to see how it goes!
     
  9. Ponraj A

    Ponraj A Well-Known Member R2R Supporter

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    Hi all,
    I was running and CO2 scrubber in my phosban reactor and now the problem is I have changed my skimmer from SRO 3000 to Skimz SN163 only due to the DC motor purpose. Now I dont know how to connect it to the air intake as it has a screw in the top. Anyone having any suggestion on how to connect it with the CO2 scrubber or shall i connect the motor air intake directly to the CO2 scrubber. Please help.
    Skimz SM-163.jpg
     
  10. Aceone

    Aceone Well-Known Member R2R Supporter

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    Just take the screw out and attach the hose of the scrubber to it.
     
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  11. Rick Mathew

    Rick Mathew Well-Known Member R2R Supporter

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  12. randyBRS

    randyBRS BRStv Apprentice :-P R2R Supporter Gold Sponsor

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    Alternatively, you can remove the silencer entirely and run the air line directly to the scrubber. The scrubber is a pretty effective silencer itself. Plus, if you throw a ball valve somewhere on the line it will be just as adjustable as the throttle screw on the silencer :)
     
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  13. Ponraj A

    Ponraj A Well-Known Member R2R Supporter

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    Hi Thank you for the suggestion, I will install it in this ways as it looks much better.
     
  14. Ponraj A

    Ponraj A Well-Known Member R2R Supporter

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    Thank you for your suggestion and support.
     
  15. FLSharkvictim

    FLSharkvictim Well-Known Member

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    I just bought an Avast Kalk Stirrer to keep everything in check! I haven't got it yet since I just placed the order a few days ago. Here is a pix of what it looks like.

    k1_new_1024x1024.jpg
     
  16. dangros

    dangros Well-Known Member

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  17. leptang

    leptang Well-Known Member

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    I have been thinking of building a reactor to hook up my skimmer using Snake Plant a.k.a. Mother-In-Law’s Tongue: Of all the different oxygen producing plants, this one is unique since it converts a lot of CO2 (carbon dioxide) to O2 (oxygen) at night, making it ideal to have several in your bedroom. 6-8 waist high plants are needed per person to survive if there is no air flow (meaning you could live in a completely air sealed room if you had these plants and the Areca Palms present). The snake plant also removes formaldehyde from the air.
     
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  18. jason2459

    jason2459 Not a paid scientist R2R Supporter R2R Excellence Award

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    Interesting plant. I might look into this and if anything its nice looking. I have a perfect spot for one in my basement where my sump is to try it out.
     
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  19. leptang

    leptang Well-Known Member

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    I was thinking of throwing it in some kind of clear box or large clear tube with a skimmer line attached
     
  20. porterreef

    porterreef Well-Known Member

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    I have been thinking about what I should do to raise my ph in my tank it rarely goes over 8.1 and it makes me nuts because I want that higher pH. I was going to get some CO2 scrubbing pellets but I can't seem to find a good local source. My next thought was what type of plants did well in a low light environment so I wouldn't be slowly killing the plant just to get some more O2 in the tank. I shall look into the snake plant seems like a winner!
     
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