@robertokc. The problem I have with the online calculators is that they assume uniform spacing. That would work in my garden, but for my shrubs and trees there is no uniformity. My shrubs are anywhere from 2 to 15 feet apart, with single point emitters. The trees are easily 40-75 feet apart, with three emitters per tree. I never get how to translate that into the question of emitter spacing in the calculator. What am I missing?
