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Sewerin Combiphon Acoustic Non-Metallic Pipe Locator for PVC, Poly, or AC Pipe


This item is not available to purchase online.

Please contact us to Purchase,
or for a Quotation, or Demonstration.

  • $8,663.00

Acoustic location of plastic pipes

Plastic pipes cannot be located by conventional electromagnetic means because they are not electroconductive. A different principle is applied when locating pipes using the acoustic method: The pipes transmit mechanical vibrations better than the earth that surrounds them. When the pipe is caused to vibrate appropriately, these vibrations spread along the pipe to the earth's surface where they can be picked up by a ground microphone. In the same way as water leaks are detected by acoustic means, the pipeline is located where the intensity is greatest. This method can also be used to locate fiber cement (AC/Transite) pipes and metal pipes.

The COMBIPHON® system consists of the Generator G5 central control unit and various impulse generators, so it can be used anywhere. Stoppers or Knockers are used to generate noises on the line which can then be acoustically detected by the AQUAPHON® or AquaTest T10 acoustic detection systems.

Literature Link 

Video of the principals of both the Knocker and Stopper noise generators:

COMPLETE Kit with Generator, Knocker for service Lines and Stopper for water mains. Kits are also available with only the Stopper for water mains, or only the Knocker for 2" and smaller pipes and tubing.

Contact us for current pricing, lead time, and delivery information.

Suggested Acoustic Locators:

  • Aquatest T-10 (Basic wireless acoustic leak detector)
  • Aquaphon A200 (Advanced acoustic locator with special pipe locating app)
  • Aquaphon AC200 (Advanced acoustic locator with special pipe locating app, Plus a Leak Noise Correlator)

This item ships ONLY to Ohio and Michigan. For other states visit for the local distributor or we can refer you to your local distributor.


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