With the use of various Sonde Transmitters Wilkinson Environmental Ltd can accurately trace the lines of non-metallic drains and ducts. Having a wide range available we can ensure that the most suitable transmitter is used to suit its purpose.

The transmitter is attached to our CCTV equipment and is inserted into the line. Once a problem such as a sewer collapse or blockage is discovered, an accurate position and depth of the problem can be obtained and marked using the suitably tuned receiver above ground.

This is a reliable and efficient service which is extremely useful in assisting repairs that require an open cut excavation.

Existing drainage can be surveyed and then accurately plotted onto plans for the clients information