Any hints for finding shorted valves?

Discussion in 'Irrigation' started by bcg, Aug 5, 2010.

  1. bcg

    bcg LawnSite Bronze Member
    from Tx
    Posts: 1,835

    One of my guys is at a customer that has a valve reading .3 Ohms and he's having trouble finding it. He's found every other valve on the site. I told him to go slow and that he's probably going to just lose the signal when he gets over it instead of it screaming at him and suggested he run a tracer wire down the lateral line to see if he can get to it that way. Anybody got any other suggestions besides poke, poke?

    Thanks.
     
  2. Wet_Boots

    Wet_Boots LawnSite Fanatic
    Posts: 47,388

    Put 400 volts through the line, and look for the smoke :)
     
  3. Kiril

    Kiril LawnSite Fanatic
    Posts: 18,308

    Slap boots up side the head to get a new magic 8 ball answer.
     
  4. Wet_Boots

    Wet_Boots LawnSite Fanatic
    Posts: 47,388

    500 volts? :p
     
  5. Mark B

    Mark B LawnSite Bronze Member
    Posts: 1,020

    Hook the 521 to the common wire. Then if you have issues finding the valve, go to another valve and connect to the common there.

    If that does not work go with 600 volts of DC power.
     
    Last edited: Aug 5, 2010
  6. AI Inc

    AI Inc LawnSite Fanatic
    Posts: 25,311

    Just walk over to the manifold at the backflow and open the cover. Ooops , nevermind.
     
  7. DanaMac

    DanaMac LawnSite Fanatic
    Posts: 13,156

    BwaaaHahahahahah!!!! :laugh:
     
  8. Mike Leary

    Mike Leary LawnSite Fanatic
    Posts: 21,912

    That solenoid must be hotter than hell, I had one the other day that was 10 ohms and I had to use channel locks to remove it.
     
  9. Wet_Boots

    Wet_Boots LawnSite Fanatic
    Posts: 47,388

    Seriously, this is TDR territory.
     
  10. Mike Leary

    Mike Leary LawnSite Fanatic
    Posts: 21,912

    Jim will be up here next week, can't wait to see how that bad boy works.
     

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