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Thread: SV-1 Programming for Calcium Reactor

  1. #1
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    SV-1 Programming for Calcium Reactor

    Hello,
    I have had my apex for a while and only really had to lurk to learn how to program. But now I am introducing a calcium reactor setup and need some help. I will have an SV-1 solenoid off the co2. I want it to open when the PH Drops. Was wondering what the best programming option would be. Would this configuration work? Should I add fail safes. This would be programmed under Link A. Or is this to simple and I'm missing something.

    Set OFF
    If pH > 7.8 Then Off
    if pH < 7.4 Then On

  2. #2
    Frequent Contributor zombie's Avatar
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    Your bounds are a bit too wide and having some failsafes is a good idea. This is what I would do.

    1. Leave the solenoid ON and manually tune the calcium reactor to meet the needs of your tank.

    2. Once manually tuned, determine what you pH meter reads and increase the bubble count by about 10%. If for example your tank pH hit a low of 8.0 and your reactor pH hovered around 7.2, then your starting code should be

    Fallback OFF
    If CaPh > 7.25 Then ON
    If CaPh < 7.15 Then OFF
    If TankPh < 7.9 Then OFF

    3. (Optional) review your outlet logs to see what the longest ON and OFF times of your solenoid were over a couple day test period and send yourself alarms for pH out of whack, or solenoid ON or OFF more than twice what you checked in that test period.

    Sent from my SM-G965U using Tapatalk

  3. #3
    New User
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    That makes sense. I like the idea with the tank PH as the failsafe. This helps tremendously. I will get in manually dialed in first and go from there. Thank you!

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