OpenSprinkler Forums OpenSprinkler Unified Firmware OSPi and Fertilizer Output

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  • #66960

    giannifp
    Participant

    Hello,
    I’m getting started to implement an application with Drip irrigation, simple 4 zones. I wanted to check if it is possible to have a valve output control a fertilizer valve in a venturi setup. What would be the most effective way to setup the fertilizer channel, just to overlap with each of the zones watering times. Will a master zone work in this case?

    Thanks in advance!
    Gianni

    #66964

    Mike
    Participant

    If it was my setup, I’d put the fertilizer dispenser upstream of my valve manifold that has my 4 zones on it. No special zone required.

    Mike

    #67711

    Robert
    Participant

    What I did was to have two master valves. One for regular watering and another for fertigation. I use the OSPi. I have OpenSprinkler configured to use the regular valve and then when I want to fertigate, I use a cron job to call a Perl script (could have been a shell script) that shuts down OpenSprinkler and takes over to do the fertigation and then fires OpenSprinkler back up. Fairly easy. Don’t really like shutting off OpenSprinkler, but necessary to keep it from messing with the valves.

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OpenSprinkler Forums OpenSprinkler Unified Firmware OSPi and Fertilizer Output