Smart controllers are a significant improvement over irrigation clocks of a generation ago. Even so, the manufacturers of irrigation products agree that smart controllers are only as efficient as the systems they are set to control.In other words, in terms of water savings, they cannot compensate for poorly calibrated pressure regulators, damaged and bent spray heads, defective nozzles or rotors and poor design and shoddy maintenance. Any of these system shortcomings can lead to over-spray, resulting in water waste, runoff and unhealthy turfgrass and ornamentals.But, what exactly is a smart controller?
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