When you walk over the line, the two will swing in, and.

How to find underground sprinkler lines. Use detectable tape to detect buried pipes. To locate the first pipe, dig near the valve boxes and areas close to the sprinkler heads. As others said, find the sprinkler heads (where the water sprays out) and if you mark them on a diagram of your lot you probably will see a pattern and be able to tell where.

Sometimes engineers use detectable tapes to bury with the plastic pipes. First, shut off the water supply. If this is not possible, one could go to the valve box and.

As noted, you may see areas where water is seeping or spraying up between a sprinkler head, and this is a clear indication. A water line is usually installed from the backflow valve to the sprinkler valves. Next you can dig carefully with a hand trowel around the heads to get the general.

On the sketch, include the location of the heads and be sure to label what zone the heads are in. Homemade electronic plastic pipe locating device circuit you. Valve locators find lost valves by tracing the wires from the controller to the lawn irrigation system valve location.

First, you must locate the leak. A septic waste pipe runs from the house to the septic tank — both easy. Add a compression tee fitting and an additional valve to.

How to find locate a lost sprinkler irrigation valve box. Use tape or spray paint to mark the rest. Hold them loosely by the three inch leg in a fist so they can sway and turn.