Views: 0 Author: Site Editor Publish Time: 2025-09-15 Origin: jf-irrigation.com
Uniform and efficient irrigation is key to maintaining a healthy, green lawn. Choosing the right sprinkler heads is crucial for achieving this goal. Among various irrigation devices, rotary head sprinklers are the top choice for both residential and commercial lawns due to their wide coverage and water-saving performance. This article will analyze the core advantages of rotary sprinkler irrigation systems, outline the key points for selecting irrigation rotor heads, and recommend the best sprinkler heads for lawns based on different needs.
Match lawn area with throw distance: For small lawns (less than 100 m²), a small rotary head with a throw of 5–8 m is suitable to avoid excessive overlap and waste. For medium to large lawns (100–500 m²), professional irrigation rotor heads with a throw of 10–15 m should be selected, and a “triangular layout” should be used to ensure no dry spots. For example, the Hunter PGP-ADV with an adjustable throw of 8–15 m is an ideal choice for medium-sized lawns.
Consider water source pressure compatibility: Household tap water pressure is typically 2.5–4 kg/cm². When selecting, confirm that the head’s “operating pressure range” matches. If the pressure is too low (<2 kg), choose a low-pressure rotor head, such as the K-Rain RPS-75, to avoid reduced throw and uneven spraying. If the pressure is too high (>4 kg), install a pressure regulator to protect the internal gear structure.
Prioritize “blockage-resistant and easy-maintenance” models: In lawn irrigation, sand, debris, and grass clippings can easily block nozzles. Therefore, the best sprinkler heads for lawns should have “removable nozzles” and “sand filters.” For example, the Rain Bird 5000 series allows nozzles to be easily removed by hand for cleaning, and the built-in inlet filter effectively blocks debris, reducing maintenance frequency.
Installation height: “Lower is better.” Set the rotor head height 2–3 cm above the mowing height (e.g., for Kentucky bluegrass with a mowing height of 4 cm, set the head at 6 cm). This reduces the risk of mower damage and keeps the water stream close to the ground, minimizing wind drift.
Regularly check rotation: Manually rotate each head quarterly to check for sticking or uneven speed. If rotation is slow, first clean the filter and nozzle. If the problem persists, it may be due to worn internal gears; replace only the gear assembly (many high-quality heads allow separate purchase of gears, springs, etc., reducing maintenance costs).
