① When not irrigating, the nozzle should not be exposed or as little as possible above the ground to avoid affecting the landscape of the garden;
② The nozzles arranged at the boundary of the plot should be equipped with a reversing mechanism, and the spraying range should have an accurate and clear boundary to avoid wetting the roads and other facilities, which may cause inconvenience for visitors to walk;
③ When the spraying angle is different, the amount of water sprayed also changes, so that the average spraying intensity remains unchanged;
④ The nozzle should have anti overflow function;
⑤ The spray nozzle has a small diameter of water droplets and good atomization performance, which not only avoids damage to the lawn but also creates a beautiful environment;
⑥ The nozzle has a wide range of operation and a good water distribution curve, resulting in higher uniformity of combined irrigation