Irrigation: General information
The irrigation system is designed in relation to the garden. The first thing to do is to assess the correct location of the sprinklers, the dripline and the central well. Generally commercially available sprinklers can wet at different angles (90 °, 180 °, 270 °, 360 ° or at will) and are preferably positioned on the perimeter of the garden.
One problem with almost all plants is water pressure. Generally a normal domestic line is sufficient to supply 5 or 6 sprinklers at a time. Therefore, if the garden requires more sprinklers, different zones must be provided (see colors in the drawing). It is important that each area has all the sprinklers of the same type.
The irrigation system can be either manual (that is, with opening of the hand-operated taps), or automatic (with solenoid valves). Before deciding, we evaluate the costs we want to support.
In any case, as already said, the first thing to do will be to divide our garden (which can also include flower beds, tanks, terraces and rocky) in areas that will be fed by a single tube; this pipe must be the diameter proportional to the number and type of sprinklers.
Manual type: If you have opted for this method you will have to make as many derivations as there are zones, providing a gate for each derivation.
If we opt for the automatic, each zone will require a solenoid valve that must be connected to the control unit (to be placed in a dry and sheltered from the weather), which will automatically manage the system. Needless to say, the automatic system has significant advantages. To have a good night's sleep while on vacation or not to get up at four in the morning to turn on the system, making irrigation automatic is the ideal solution. To prevent the system from starting even in rainy conditions or after heavy rainfall, it is advisable to equip the system with a rain sensor.
This method guarantees a lower waste of water and is an excellent solution for hedges, balconies, planters and rocks. It is good practice to dedicate a specific area of the dripline system as it usually has to remain in operation much longer than the sprinklers.