1990 PIP introduced its PIP Pulsators series 100 [US Patent 5,507,436].
The PIP Pulsators series 100 have been used since 1993 for humidity control, cooling and irrigation in greenhouses. In addition the PIP Pulsators series 100 are used for irrigating trees. In a test plot conducted by the University of Florida a drip irrigation system that was irrigating a 40-acre plot of citrus was converted to pulsating micro system in which the flow of each Pulsator was controlled by a 12-liter/hour dripper. The results show drastic production increase, additional net income per acre, and savings of large amounts of water. PIP is now producing different Pulsators with different innovated spraying devices for irrigating trees and bushes
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