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The way they work is: you hold them parallel and straight out in front
of you, when you come to a water pipe made of cast or steel they begin
to separate, when you are over the pipe they are all the way
apart,
this way you can tell how deep the water or pipe is also.
When
the rods start to swing apart or sometimes they will cross, as they
start
to move count your steps, till the sticks quit
moving.
if you took four steps an a step is two feet then the pipe is
eight
feet down.
Try not to allow you imagination get involved. Just relax, keep
the
rods straight out. maybe just a slight down angle as to keep them
together
in front of you as you walk.
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