Two zones running at once

Discussion in 'Irrigation' started by irritation, Jun 24, 2008.

  1. irritation

    irritation LawnSite Gold Member
    Posts: 3,140

    New account... zones 4 and 6 are running at the same time... controller checks out good... valve box wiring is good. Somewhere along about a 300' foot run of 18-7 multistrand the yellow and green wires are touching. I used my locator to trace the wires and dug up a few places where I thought they may have been nicked... no luck.
    Whats the easiest way to find the nick?
     
  2. Yiii those are always toughies. If the wire is exposed a fault finder may do it. Progressive 901
     
  3. Wet_Boots

    Wet_Boots LawnSite Fanatic
    Posts: 46,449

    You did do resistance measurements to confirm the wires are touching?
     
  4. irritation

    irritation LawnSite Gold Member
    Posts: 3,140

    Yes, there is no doubt about it.
     
  5. Wet_Boots

    Wet_Boots LawnSite Fanatic
    Posts: 46,449

    Hmmmm, I wonder what would happen if you disconnected the solenoids, and the zone wires from the controller, and did a trace, with the signal connected to the 4 wire, and the 6 wire being grounded. Might you get a null along the shorted run of cable, and a clear signal after you pass the short?
     
  6. Shawn Perkins

    Shawn Perkins LawnSite Member
    Posts: 32

    Doubler should work great
     
  7. irritation

    irritation LawnSite Gold Member
    Posts: 3,140

    Thanks, but no thanks.
     
  8. duwaprod

    duwaprod LawnSite Member
    Posts: 32

    One of our Irrigander irrigation expanders would solve the problem if you simply can't find the short circuit. We have had many customers use an Irrigander expander to bypass a broken wire in a cable. The Irrigander expanders allow direct control of each valve so they do not have the limitations of the Doubler.

    --Don
     
  9. Progressive 2003 Pulser Ground Fault Locator
     
  10. Wet_Boots

    Wet_Boots LawnSite Fanatic
    Posts: 46,449

    Well, yeah, and any other number of similar rigs, but I wonder what the trace I suggested would reveal.
     

Share This Page