Sonic Finder 1000 Plastic and Non-metallic Pipe Locator, for Gas, Water, SewerLocates Polyethylene Gas Lines! Untraceable plastic pipe presents a difficult, potentially dangerous, challenge for utilities and their service providers. Existing solutions often involve intrusive methodologies and can even require access inside pipeline assets or inside private premises. Many products currently available simply do not work as described. Solinas Technologies has developed a new approach to this age old problem, one that can