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Dual Venturi Diy External Co2 Reactor

This co2 reactor costs about 20$ due to using Clear PVC housing, you can use solid 2" pipe if you wish.
  1. yusuf saraç

    yusuf saraç New Member

    Dec 26, 2017
    Likes Received:
    Local Time:
    12:12 PM
    I'm using it this way for a month now and this method works really really well compared to the the out of the box design
    Kyalgae likes this.
  2. Cyano

    Cyano New Member

    Jul 21, 2018
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    Local Time:
    1:12 AM
    I think I could benefit from a reactor like this... Right now I am injecting CO2 into my canister intake and I don't think it is very efficient.

    The thread is so old that many images have expired, and I don't yet understand how the reactor operates, all I know is I really like the idea of a HOB unit that does not require me to fiddle with my canister. If anyone can post pics or videos, I would appreciate it.
  3. Andrew T

    Andrew T Subscriber

    Jul 15, 2015
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    Local Time:
    9:12 AM
    Resurrecting an old thread to ask one question.
    I have drilled the Venturi to the side, 2” from the top.
    Tubing and irrigation drip valve is connected .
    Should I let the valve slightly open to allow a drop of water a second to come out of the Venturi or should I just have it closed and release it at the end of the day for maximum performance from the reactor?

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