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Solid Set vs. Permanent Set
While both solid-set and permanent-set systems are
commonly used and are both acceptable, they each have
unique features. A hybrid system, utilizing buried plastic
mainlines with portable laterals has been found to combine
many of the good features of both systems.
Solid Set with Aluminum, PVC, or polyethylene pipe and
Rotators™ or Big Gun® Sprinklers --
In a solid set arrangement, pipe can be removed from the
field for cultural practices which eliminates the necessity of
farming around sprinkler risers. Because the pipe is not
permanently fixed in one location, it is possible for successive
sets to be offset from the previous position in order to even
out the overall uniformity. In its most basic form, the
portable concept is one of the lowest cost systems available.
These systems can be rotated to different fields to follow the
crop rotation. This flexibility makes system leasing programs
practical.
Permanent Set and Rotators™ or Big Gun® Sprinklers --
In a permanent arrangement, selection of the sprinkler
spacing is not limited by the pipe length multiples. Permanent
set more readily adapts to automated systems as it is not
practical to lay control wires on top of the ground. There is
less irrigation labor involved, as the pipe does not have to be
moved out of the field for cultural practices. It is possible to
loop the plastic piping system which enables some economies
through pipe size reduction. Supporting the sprinkler riser is
less complicated than with above-ground pipe.
Big Gun - Solid Set Applications
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