Our cameras have tracing capability so that we can mark out above ground exactly where the drains and running to and how deep they are. In this way we often find where hidden and buried manholes are as well as the exact location for drain repair such as collapsed pipes.
We can map accurately where the drains are on a drainage plan and mark the ground with location and depth where the drain run is at various points. We can also use dye testing if it is not possible to use radio detection to find out where the downstream location of a pipe is.
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Our hand held sonar tracing receiver
Example of drain dye tracing
This is how we trace the exact location and depth of drains