Until now, public spaces had to be watered; today a more considered approach is possible, especially in terms of water consumption: specific technologies and products allow optimum, “targeted” irrigation, resulting in considerable water savings.
The installation of the system is crucial for perfect functioning over its entire working life: it may be true that these are only “buried plastic tubes”, but they have to be buried at the right depth, following a precisely designed plan and connected using specific fittings of the correct type and dimensions.
Irrigation units must be connected using a system that ensures perfect alignment with the soil, even months and years after installation. A sprinkler head that “sticks out” of the ground is a potential hazard for passers-by, an easy target for vandalism (as it is so visible) and a perfect test for the durability and sharpness of lawnmower blades.
The flow rate of water within the tubes must be kept low, to eliminate head loss which would otherwise affect the functioning of the sprinklers. With the same flow rate, a larger-diameter tube may remove the need for a pump, with the resulting energy savings.
The small wells containing the electrovalves must be positioned out of sight of potential vandals and. like the sprinkler heads, perfectly aligned at ground level.
The electrovalves must open and close slowly to avoid the water hammer effect on the tubing.
They must be accessible from above for maintenance purposes, and the filter must be dismantled from the outside.