Designing a system for large areas
For larger lawns (1/4 acres or more) we suggest multiple spigots be located throughout your yard. This will not only increase overall performance of the zones, but will significantly cut cost and overall length of each sprinkler zone.
We recommend approximately 2-3 spigot locations per 1/4 acre parcel as a rule. See this 100 × 100 foot example design and layout.