Are you tired of seeing dry patches on your lawn despite having sprinklers installed? One of the most common reasons for this is incorrect adjustment of your Hunter sprinkler heads. Adjusting your sprinkler heads can be a simple and cost-effective solution to ensure that your lawn is evenly watered and healthy.
In this article, we will guide you through the process of adjusting your Hunter sprinkler heads. We will cover the basic steps involved in adjusting the arc, radius, and spray pattern of your sprinkler heads. We will also provide some tips to help you troubleshoot common problems that you may encounter while adjusting your sprinkler heads. With our step-by-step guide, you will be able to adjust your Hunter sprinkler heads like a pro and keep your lawn looking lush and green.
Understanding Hunter Sprinkler Heads

Hunter sprinkler heads are a popular choice for residential and commercial irrigation systems. They are known for their durability, reliability, and ease of maintenance. In this section, we will discuss the different types of Hunter sprinkler heads, the components that make up a Hunter sprinkler head, and common issues that you may encounter.
The Different Types of Hunter Sprinkler Heads
Hunter offers a variety of sprinkler heads to meet different irrigation needs. The most common types of Hunter sprinkler heads are:
- Pop-up Spray Heads: These are the most common type of sprinkler heads and are ideal for small to medium-sized lawns. They pop up from the ground when activated and spray water in a fixed pattern.
- Rotary Nozzles: These sprinkler heads are designed to provide a more even distribution of water and are ideal for larger lawns or areas with irregular shapes. They rotate as they spray water, covering a larger area.
- MP Rotators: These sprinkler heads are designed to provide a more efficient use of water and are ideal for areas with low water pressure. They use a rotating stream of water to provide a more even distribution of water.
The Components of a Hunter Sprinkler Head
A Hunter sprinkler head is made up of several components, including:
- Body: This is the main part of the sprinkler head that houses the other components.
- Nozzle: This is the part of the sprinkler head that sprays water. It can be easily replaced to change the spray pattern or flow rate.
- Filter Screen: This is a small screen that filters out debris and prevents clogging.
- Check Valve: This prevents water from flowing back into the irrigation system when the sprinkler head is turned off.
- Rotor: This is the part of the sprinkler head that rotates and distributes water in a circular pattern (for rotary nozzles).
Common Issues with Hunter Sprinkler Heads
While Hunter sprinkler heads are known for their durability, they may still encounter issues from time to time. Some common issues include:
- Clogged Nozzles: This can be caused by debris in the water or a buildup of mineral deposits. It can be resolved by cleaning or replacing the nozzle.
- Low Water Pressure: This can be caused by a variety of factors, including a clogged filter screen, a malfunctioning valve, or a leak in the irrigation system.
- Broken Rotor: This can be caused by physical damage or wear and tear over time. It can be resolved by replacing the rotor.
By understanding the different types of Hunter sprinkler heads, the components that make up a Hunter sprinkler head, and common issues that you may encounter, you’ll be better equipped to adjust and maintain your sprinkler heads for optimal performance.
Preparation for Adjusting Hunter Sprinkler Heads

Before you start adjusting your Hunter sprinkler heads, it is important to prepare the necessary tools and take some safety precautions. Here are the things you need to do before getting started:
Tools Needed for the Job
To adjust your Hunter sprinkler heads, you will need the following tools:
- Hunter sprinkler adjustment key or a flathead screwdriver
- Pliers or a wrench
- Shovel or a trowel
- Rags or towels
- Work gloves (optional)
Make sure you have all these tools handy before you start adjusting your sprinkler heads.
Safety Precautions to Take Before Adjusting Sprinkler Heads
Before you start adjusting your sprinkler heads, make sure you take the following safety precautions:
- Turn off the water supply to your sprinkler system. This will prevent any accidental spraying of water while you are working on the sprinkler heads.
- Wear work gloves to protect your hands from sharp edges and debris.
- Watch out for any underground cables or pipes. Use a cable locator if necessary to avoid damaging any underground utilities.
- Be careful when digging around the sprinkler heads. Avoid damaging the sprinkler pipes or heads with your shovel or trowel.
By taking these safety precautions, you can ensure that you stay safe while adjusting your Hunter sprinkler heads.
How to Adjust Hunter Sprinkler Heads

If you have a Hunter sprinkler system, you may need to adjust the sprinkler heads from time to time to ensure proper coverage and watering efficiency. Here’s how to adjust both the Hunter spray heads and rotor heads.
Step-by-Step Guide on Adjusting Hunter Spray Heads
- Start by turning off the water supply to the sprinkler system.
- Locate the adjustment screw on the top of the spray head.
- Turn the screw clockwise to decrease the spray radius or counterclockwise to increase it.
- Adjust the spray pattern by using the nozzle adjustment screw located on the side of the spray head.
- Turn the water supply back on and observe the spray pattern to make sure it is adjusted correctly.
Step-by-Step Guide on Adjusting Hunter Rotor Heads
- Turn off the water supply to the sprinkler system.
- Locate the arc adjustment screw on top of the rotor head.
- Turn the screw clockwise to decrease the arc or counterclockwise to increase it.
- Adjust the distance of the spray by using the distance adjustment screw located on the bottom of the rotor head.
- Turn the water supply back on and observe the spray pattern to make sure it is adjusted correctly.
Troubleshooting Tips for Common Issues During Adjustment
- If the spray pattern is uneven, check for clogs or debris in the nozzle or filter.
- If the spray is too high or low, adjust the rotor head’s distance screw.
- If the spray is too far or not far enough, adjust the arc adjustment screw.
- If the spray is leaking or not functioning properly, check for damage to the sprinkler head or valve and replace as necessary.
By following these simple steps, you can adjust your Hunter sprinkler heads and ensure your lawn and garden are getting the proper amount of water they need to thrive.
Advanced Techniques for Hunter Sprinkler Head Adjustment

Adjusting Sprinkler Arcs and Radii
To adjust the arc of your Hunter sprinkler head, you will need to locate the adjustment screw on the top of the sprinkler head. Turn the screw clockwise to decrease the arc or counterclockwise to increase it. To adjust the radius, you will need to locate the radius adjustment screw on the side of the sprinkler head. Turn the screw clockwise to decrease the radius or counterclockwise to increase it.
It’s important to note that adjusting the arc and radius of your sprinkler head will affect the amount of water that is distributed. Be sure to adjust the arc and radius in a way that will provide even coverage without wasting water.
Adjusting Water Pressure
If you find that your Hunter sprinkler heads are not providing enough water coverage, you may need to adjust the water pressure. To do this, locate the pressure regulator on your irrigation system and adjust it to increase or decrease the water pressure.
It’s important to note that adjusting the water pressure can have an impact on the overall performance of your irrigation system. Be sure to make adjustments carefully and monitor the performance of your system to ensure that it is working properly.
Adjusting Hunter Sprinkler Heads for Irregularly-Shaped Lawns
If you have an irregularly-shaped lawn, you may need to adjust your Hunter sprinkler heads to ensure that all areas are receiving adequate water coverage. One way to do this is to install adjustable sprinkler heads that allow you to adjust the arc and radius to fit the shape of your lawn.
Another option is to install multiple sprinkler heads in areas where coverage is lacking. Be sure to position the sprinkler heads in a way that provides even coverage without wasting water.
In conclusion, by following these advanced techniques for Hunter sprinkler head adjustment, you can ensure that your irrigation system is working efficiently and effectively. Remember to make adjustments carefully and monitor the performance of your system to ensure that it is working properly.
Maintenance and Care for Hunter Sprinkler Heads
Regular Upkeep to Avoid Future Issues
To ensure your Hunter sprinkler heads operate effectively and last for years, it is important to perform routine maintenance. Here are some steps you can take to keep your sprinkler heads in good condition:
- Regularly inspect your sprinkler heads for damage or wear and tear. Replace any damaged or worn out parts as soon as possible.
- Clean the sprinkler heads regularly to prevent clogs and blockages. Use a soft brush or toothbrush to remove any dirt or debris that may have accumulated on the sprinkler head.
- Adjust the sprinkler heads as needed to ensure proper coverage and prevent water waste.
Tips for Winterizing Hunter Sprinkler Heads
Winterizing your sprinkler system is crucial to prevent damage from freezing temperatures. Here are some tips to winterize your Hunter sprinkler heads:
- Turn off the water supply to your sprinkler system and drain any remaining water from the pipes.
- Remove the sprinkler heads and blow out any remaining water using an air compressor.
- Store the sprinkler heads in a dry, cool place to prevent damage from extreme temperatures.
When to Replace Hunter Sprinkler Heads
Even with proper maintenance, sprinkler heads will eventually need to be replaced. Here are some signs that it’s time to replace your Hunter sprinkler heads:
- The sprinkler head is damaged or broken beyond repair.
- The sprinkler head is not providing adequate coverage.
- The sprinkler head is more than 10 years old.
By following these simple tips, you can ensure that your Hunter sprinkler heads are properly maintained and will provide years of reliable service.
Frequently Asked Questions
How Often Should I Adjust My Hunter Sprinkler Heads?
The frequency of adjusting your Hunter sprinkler heads depends on various factors, such as the type of sprinkler head, the water pressure, and the terrain. However, it’s recommended that you adjust your sprinkler heads at least twice a year – once in the spring and once in the fall.
Can I Adjust Hunter Sprinkler Heads Without Special Tools?
Yes, you can adjust Hunter sprinkler heads without any special tools. All you need is a flat-head screwdriver to adjust the arc and a needle-nose plier to adjust the spray distance.
How Do I Know Which Type of Hunter Sprinkler Head I Have?
You can identify the type of Hunter sprinkler head by looking at the model number on the body of the sprinkler head. The model number will help you determine the type of sprinkler head, such as fixed, adjustable, or rotary.
What Should I Do If My Hunter Sprinkler Head Won’t Adjust?
If your Hunter sprinkler head won’t adjust, try cleaning it first. If cleaning doesn’t work, you may need to replace the nozzle or the entire sprinkler head.
How Do I Adjust Hunter Sprinkler Heads for an Area with Slopes?
For an area with slopes, you need to adjust the sprinkler heads to prevent water runoff. You can adjust the spray distance and the arc to ensure that the water is evenly distributed.
Can I Adjust the Water Flow for My Hunter Sprinkler Heads?
No, you cannot adjust the water flow for Hunter sprinkler heads. However, you can adjust the spray distance and the arc to control the amount of water that is distributed.
How Do I Prevent My Hunter Sprinkler Heads from Getting Clogged?
To prevent your Hunter sprinkler heads from getting clogged, make sure to clean them regularly. You can use a small brush or a toothbrush to remove any debris or dirt that may be clogging the nozzle.
Why Are My Hunter Sprinkler Heads Not Covering the Entire Area They’re Supposed to?
If your Hunter sprinkler heads are not covering the entire area they’re supposed to, you may need to adjust the spray distance or the arc. You may also need to replace the nozzle or the entire sprinkler head.
How Do I Know If I Need to Replace My Hunter Sprinkler Heads?
If your Hunter sprinkler heads are old, damaged, or not functioning properly, you may need to replace them. You can also replace them if you want to upgrade to a more efficient and effective sprinkler system.
Are There Any Special Instructions for Adjusting Hunter Sprinkler Heads During Different Seasons?
Yes, you may need to adjust your Hunter sprinkler heads differently during different seasons. For example, you may need to adjust the spray distance and the arc during the summer to prevent water runoff, and adjust them again during the winter to prevent freezing. Consult your user manual or contact a professional for more specific instructions.
Conclusion
Recap of the Main Points
In this article, you have learned how to adjust Hunter sprinkler heads to ensure that your lawn or garden receives the right amount of water. You have learned how to adjust the spray pattern, distance, and arc of the sprinkler head to suit your watering needs. You have also learned how to troubleshoot common problems that may arise with your sprinkler head, such as clogs or leaks.
Encouragement to Try Adjusting Hunter Sprinkler Heads on Your Own
Adjusting your Hunter sprinkler heads may seem daunting at first, but with the right tools and instructions, it is a task that you can easily handle on your own. By taking the time to adjust your sprinkler heads, you can save money on your water bill, conserve water, and keep your lawn or garden healthy and green.
Final Thoughts on the Importance of Proper Sprinkler Head Maintenance
Proper sprinkler head maintenance is essential to ensure that your lawn or garden receives the right amount of water. By adjusting your sprinkler heads, you can prevent overwatering or underwatering, which can lead to brown spots, uneven growth, and other problems. Regular maintenance of your sprinkler heads can also extend their lifespan, saving you money in the long run.
In conclusion, adjusting Hunter sprinkler heads is a simple and cost-effective way to keep your lawn or garden healthy and green. By following the instructions outlined in this article, you can easily adjust your sprinkler heads and troubleshoot common problems. So go ahead and give it a try – your lawn or garden will thank you for it!
Sprinkler Expert