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Standard Set-up Procedures
4.4
Open Trench (Stringline)
This procedure is best for shorter runs of pipe, typically those less that 90
meters (300 feet).
B
•
Set the grade. Enter the required grade
for the pipe to be laid in the display of the
A
Piper.
•
Set the elevation. Move the Piper up or
down on the (optional) trivet until the
required height is set. (Choose the most
C
convenient method for determining the
cut-to-invert distance.)
•
Set the line. Locate the line for the laser
beam.
48
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