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Key Features
- Location of non-metallic pipes
- Useable for different pipe diameters
- Independent of electrical interference
- Variable hammer-frequencies for optimal results
PDF Catalogs & Additional Info

RSP3 Acoustic Pipe Knocker
The thumper kit offers fast set-up, eliminates water connections or interruptions of service and comes with an easy to use control box. The control box features manual adjustments for impact intensity and pulse repetition. Three levels of impact intensity cover a broad range of locating or leak detection needs, use the low intensity setting closer to walls or high intensity for longer distances. The control box can be adjusted to deliver 40/min strike impulses for locating near the thumper, up to 120/min for longer distances.
The RSP3 sends three impulses with each striker pulse sequence, and the sequence drops to two impulses with a low battery. The RSP3 impulse generator is designed to work on either vertical or horizontal pipes, while the variable impulse and intensity allows for optimal use on all types of pipes and water systems.
This SEBA KMT water pipe knocker kit must be used with a listening device for locating water lines and leak detection. Pair with a HL 50-BT Acoustic Water Leak Locator or the HL7000 for surveying and pinpointing leaks.
WCT Products is the Southern California Distributor for Megger products. Reach out for a quote or demonstration and we'll be in touch!
In detection and localization of non-metallic drinking water pipes, e.g. asbestos cement, PE and PVC, the acoustic sound pulse technique is employed. A sound pulse generator transmits vibrations along the pipe. Depending on type of material, diameter and type of soil, the sound pulses propagate along the pipe and can be detected on the surface by means of a geophone. In this manner the route of the pipe can precisely be located.
The achievable range depends on many factors such as depth, type of soil and pipe material.
This acoustic location method can also be applied to metal pipes. It is extremely helpful for pipes with Tyton sleeves and in any event when, due to electrical interference, location by electric means is impossible. The range achieved with metal pipes is slightly greater than on others.
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