Finding where our leak is.

Discussion in 'Irrigation / Sprinkler Forum' started by wynnlindybell, Aug 20, 2006.

  1. wynnlindybell

    wynnlindybell New Member

    Messages:
    4
    We have an older system with 3 zones. All zones were working fine up to about 3 weeks ago. All of a sudden, one of the zones doesn't have enough pressure to make the sprinklers pop up although water does pour out of the sprinklers at their sites.

    We assume there has been a break somewhere in the zone, but don't have a clue how to begin to locate it. The zone covers quite a distance through multiple areas of our lawn so we'd like to avoid digging up our lawn any more than necessary. Any ideas how we go about this?

    Thanks for any help you can give.

    Lindy
  2. jimbo

    jimbo Plumber

    Messages:
    8,997
    Location:
    San Diego
    This is not facetious: look for the wet spot. If you let the water run, it will show up somewhere. When you say water "pours" out of the heads, that can be an issue on certain types of pop-ups, especially the old Champion brass bodies. But it can also be an indicator of a broken riser.

    Time to put on the Dick Tracy hat and start poking around.
  3. wynnlindybell

    wynnlindybell New Member

    Messages:
    4
    Thanks Jimbo for the quick reply. We actually did that and did not notice any obvious locations, except one place where the dirt under a walking stone was wetter than elsewhere. That is where we are going to start, but since we bought the house post-sprinkler install, we have no idea where the lines are located. Maybe this will be a good time to try to find out.
  4. wynnlindybell

    wynnlindybell New Member

    Messages:
    4
    One more question. Does anyone know of any affordable devices that will locate pvc from above ground like there are ones to locate metal pipe?
  5. jimbo

    jimbo Plumber

    Messages:
    8,997
    Location:
    San Diego
    No. This is why buried plastic gas line must have a tracer wire buried with it.
    But there are leak locator services which can locate a leak. A service call will run $250 to $400 , so I would do a little digging first.
  6. wynnlindybell

    wynnlindybell New Member

    Messages:
    4
    Thanks.... a digging we will go.... Will let you know. Thanks for your help.
  7. Gary Swart

    Gary Swart In the Trades

    Messages:
    7,350
    Location:
    Yakima WA
    Again, before you start digging, run the zone for an extend time. This should give you a wet spot that will at least cut down on the amount of digging. My earlier suggestion about capped off the risers would help, too.
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