TWO CONTROLLERS , ONE PUMP

Discussion in 'Irrigation' started by clyde, Sep 12, 2017.

  1. clyde

    clyde LawnSite Senior Member
    Messages: 336

    I ve been working on this system for a guy that has about 5 acres with an irrigated. Lightning struck the system the other day. I have it all back together now except now one box is faulting the other. He is pumping out of a lake. I disconnected one controller from the pump relay and everything is working fine. What I need to know how to wire both systems to where they do not send a signal back into the other one.

    The guy at Keelings told me use a 1 way diode.
     
  2. greenmonster304

    greenmonster304 LawnSite Gold Member
    Messages: 3,649

  3. Sprinkus

    Sprinkus LawnSite Silver Member
    Messages: 2,304

    Mike Leary likes this.
  4. kawasaki guy

    kawasaki guy LawnSite Fanatic
    Male, from USA
    Messages: 16,257

  5. greenmonster304

    greenmonster304 LawnSite Gold Member
    Messages: 3,649

    Been working there ever since. Made some improvements. Ironically this site also got hit by lightning last winter and I had to redo controllers and relays. https://www.lawnsite.com/threads/snow-lighting.464464/
     
  6. HunterTekGeek

    HunterTekGeek Sponsor
    Messages: 326

    In a pinch.....
     

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    benhargreaves likes this.
  7. kellanv

    kellanv LawnSite Bronze Member
    Messages: 1,162

  8. irritation

    irritation LawnSite Gold Member
    Messages: 3,578

  9. kellanv

    kellanv LawnSite Bronze Member
    Messages: 1,162

    Yes you will need one for each controller. Basically they function as a "backflow preventer" on the electrical side. We had one wired within each controller.
     
  10. irritation

    irritation LawnSite Gold Member
    Messages: 3,578

    I do not think they can operate at the same time if the controllers share the same common wire.
     

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