Rain Bird 1800 series pop-up sprinkler heads are a popular choice for efficient and reliable lawn irrigation. However, like any irrigation system, they require periodic adjustment to ensure optimal performance and water conservation. This guide will walk you through the process of adjusting your Rain Bird 1800 sprinkler heads, covering common adjustments and troubleshooting tips.
Understanding Your Rain Bird 1800 Sprinkler Head
Before you begin adjusting, it's crucial to understand the key components and their functions. The Rain Bird 1800 is a rotary sprinkler head, meaning it rotates to water a circular area. Key adjustable parts include:
- Adjusting Ring: This ring controls the arc of the spray pattern. It allows you to customize the spray from a full 360° circle to a smaller arc, ideal for watering specific areas without overwatering others.
- Pressure Adjustment Screw: This small screw, often located under the top cap, regulates the water pressure affecting the spray distance and pattern.
- Height Adjustment: Most models allow for some height adjustment, typically by turning the sprinkler head itself. This is useful for ensuring the spray head is even with the surrounding turf.
How to Adjust the Spray Arc (Adjusting Ring)
The most common adjustment is altering the spray arc. This is essential to prevent overwatering areas beyond your lawn and conserve water.
- Locate the Adjusting Ring: This is usually a slotted ring near the top of the sprinkler head.
- Turn the Ring: Using a screwdriver or your fingers (depending on the design), gently turn the ring clockwise to reduce the spray arc or counterclockwise to increase it.
- Test the Adjustment: Turn on the sprinkler and observe the spray pattern. Repeat steps 2 and 3 until the arc matches your desired area.
How to Adjust the Spray Distance (Pressure Adjustment Screw)
The spray distance is heavily influenced by water pressure. If your sprinkler is under-watering or over-watering, adjusting the pressure may be necessary. Caution: Incorrect pressure adjustment can damage the sprinkler head. Start with small adjustments.
- Locate the Pressure Adjustment Screw: This is usually a small screw located under a removable cap on top of the sprinkler head.
- Access the Screw: Remove the top cap carefully to reveal the screw.
- Adjust the Screw: Turning the screw clockwise generally reduces the spray distance, while turning it counterclockwise increases the distance. Make small adjustments, test, and repeat as needed. Consult your sprinkler head's manual for specifics as adjustment methods may differ slightly between models.
How to Adjust the Sprinkler Head Height
Adjusting the sprinkler head height ensures even water distribution and prevents the spray from being blocked by tall grass.
- Loosen the Sprinkler: Depending on the model, you might need to slightly loosen the nut securing the sprinkler to the riser pipe.
- Adjust the Height: Carefully adjust the height of the sprinkler head. Tighten the nut once the desired height is achieved.
Troubleshooting Common Problems
Sprinkler Head Doesn't Pop Up:
- Check for Debris: Remove any debris that might be obstructing the pop-up mechanism.
- Check Water Pressure: Low water pressure can prevent the sprinkler from popping up. Check your main water supply.
- Inspect for Damage: Carefully examine the sprinkler head for any damage or blockages.
Uneven Spray Pattern:
- Check for Obstructions: Remove any obstructions (rocks, debris, or tall grass) that might be interfering with the water flow.
- Adjust the Pressure: Adjust the pressure adjustment screw as described above.
- Clean the Nozzles: Accumulated sediment can block the nozzles, leading to an uneven spray pattern.
Sprinkler Head Sprays Too Far or Too Short:
- Adjust the Pressure: Adjust the pressure adjustment screw to fine-tune the spray distance.
Maintaining Your Rain Bird 1800 Sprinkler Heads
Regular maintenance is key to prolonging the lifespan of your sprinkler heads and ensuring optimal performance. This includes:
- Inspecting for Damage: Regularly check for any signs of damage, wear, or blockages.
- Cleaning the Nozzles: Periodically clean the nozzles to remove sediment and debris.
- Lubricating Moving Parts: Applying a small amount of lubricant to moving parts can help prevent them from seizing up.
By following these steps and regularly maintaining your Rain Bird 1800 sprinkler heads, you can ensure your lawn receives consistent and efficient watering, leading to a healthier and more vibrant landscape. Remember to always consult your specific model's manual for detailed instructions and specifications.
