Tracer Wire

• Video - [1]
• Tracer wire (blue) is required for potable water, sewer (green), gas (yellow).
• 6 colors all together - [2]

Sourcing

• Gas tracer wire - $22/100ft - [3]

About

• Different techniques are used. Radar can find pipe, or induction-based emitter/sensor. Or the tracer wirewhere you connect to a wire.

Tracer Kit

• Useful Amazon reviews - clip to ground and wire you want to trace. Then use the sensor. [4]
• Harbor Freight [5] - manual []
• You energize a wire and use a detector - [6]
• Another - [7]