Toro TIS-240 User Manual page 71

B
Appendix B
Gathering Site Data
Introduction
One of the parameters a user must enter to calculate an efficient
schedule is a precipitation rate (PR). The following outlined processes
enable a user to gather site information to determine a base precipita-
tion rate for each station. Fine-tuning this precipitation rate may be
necessary if the irrigation system was not installed to exact
manufacturer's standards.
As with any irrigation schedule, an initial calculation of the schedule is
performed and then adjustments are made to fine-tune the amount of
water used to properly maintain the landscape.
Fine-tuning is vital to obtaining anaccurate and efficient schedule for
the landscape. The schedule adjustment process requires a base
program calculated on as much information about the landscape as
possible. It is then adjusted up or down according to the landscape
response. The goal is to adjust the program to the point of slight stress
in the landscape and then adjust it back up slightly to keep the
landscape green. This allows a green landscape while using only
enough water to keep it that way.
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