When adjusting or replacing sprinkler heads in your Hunter irrigation system, understanding how to set them correctly is crucial. Hunter sprinkler heads, renowned for their durability and efficiency, offer a wide range of options to meet the unique watering needs of your lawn or garden. By following a few simple steps and familiarizing yourself with the specific features of Hunter models, you’ll be able to ensure optimal water distribution and a lush, healthy landscape.
Before embarking on the process of setting your Hunter sprinkler head, it’s essential to gather the necessary tools and materials. A flathead screwdriver, adjustable wrench, and a pair of pliers are generally sufficient for most adjustments. Additionally, check if you have access to replacement parts, such as a new sprinkler body or nozzle, in case of any unforeseen issues. Thorough preparation will help streamline the setting process and minimize interruptions.
Once you’re equipped with the necessary tools and parts, you can begin setting your Hunter sprinkler head. Start by locating the adjustment screw, which is typically found on the top or side of the sprinkler body. Using the flathead screwdriver, carefully turn the screw clockwise to increase the spray distance or counterclockwise to reduce it. Be gentle when making adjustments to avoid damaging the screw or the sprinkler head itself. Additionally, note the markings on the adjustment screw to ensure precise and consistent settings across multiple sprinkler heads.
Identifying the Sprinkler Head Type
Before you can begin setting a Hunter sprinkler head, it is crucial to correctly identify its type. Hunter offers a wide range of sprinkler heads, each designed for specific irrigation applications. Determining the type of sprinkler head you have will ensure that you use the appropriate settings and perform the task effectively.
Identifying Spray Heads
Spray heads are the most common type of sprinkler head and are typically used for residential and light commercial applications. They are characterized by their ability to produce a uniform, circular spray pattern. Spray heads come in various sizes and flow rates, so it is important to select the correct one for your specific needs.
| Type | Features | Applications |
|---|---|---|
| MP Rotator | Uniform, gentle spray pattern | Residential lawns, slopes, and areas with sandy or clay soils |
| Pro-Spray | Adjustable spray pattern and radius | Commercial lawns, sports fields, and irregular-shaped areas |
| PS Ultra | High efficiency and water savings | Residential and commercial properties looking to conserve water |
Identifying Rotors
Rotors are designed for larger areas and higher flow rates than spray heads. They rotate to cover a larger area and are ideal for commercial, sports, and agricultural applications. Some rotors have adjustable nozzles that allow you to customize the spray pattern and radius.
| Type | Features | Applications |
|---|---|---|
| PGP Ultra | Uniform, heavy-duty spray pattern | Commercial landscapes, sports fields, and large open areas |
| I-20 | Long-range and adjustable spray pattern | Large areas, agricultural fields, and areas with windy conditions |
Selecting the Correct Sprinkler Head
Choosing the right sprinkler head is crucial for creating an efficient and effective irrigation system. Hunter offers a wide range of sprinkler heads designed for various applications, from small residential lawns to large commercial areas. To ensure optimal performance, consider the following factors:
Sprinkler Type:
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Rotor Sprinklers:
These sprinklers rotate in a circular motion, providing even coverage over large areas with adjustable arc settings. Ideal for watering lawns, parks, and sports fields.
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Spray Sprinklers:
Spray sprinklers emit water in a fan-shaped pattern. They are suitable for smaller areas such as flowerbeds, gardens, and narrow spaces.
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Pop-Up Sprinklers:
These sprinklers retract into the ground when not in use, minimizing damage from lawnmowers and providing a neat appearance.
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Drip Irrigation:
Ideal for watering individual plants or rows of vegetation, drip irrigation delivers water directly to the roots, reducing water evaporation and runoff.
Sprinkler Coverage:
The coverage area of a sprinkler head determines the size of the area it can water. It is important to choose a sprinkler head with a coverage area that matches the size of the intended irrigation area.
Sprinkler Radius:
The radius of a sprinkler head refers to the distance it can spray water. Consider the length and shape of the area you need to water when choosing a sprinkler head with the appropriate radius.
Additional Considerations:
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Flow Rate:
The flow rate of a sprinkler head indicates the amount of water it can deliver per minute. High flow rates are suitable for larger areas, while lower flow rates are preferred for smaller areas.
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Inlet Size:
The inlet size of a sprinkler head refers to the diameter of the pipe it connects to. Ensure that the inlet size of the sprinkler head matches the size of the irrigation pipes.
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Spray Pattern:
Different sprinkler heads offer different spray patterns, such as circular, rectangular, or fan-shaped. Choose a spray pattern that best suits the irrigation needs of your area.
Determining Sprinkler Head Spacing
When determining the correct spacing for your Hunter sprinkler heads, there are several factors to consider:
Sprinkler Type
Different sprinkler types have different spray patterns and ranges. Check the manufacturer’s specifications for the specific sprinkler head you are using to determine its coverage area.
Water Pressure
The water pressure in your system will affect the range and efficiency of your sprinkler heads. Measure the water pressure at the sprinkler head location to ensure it meets the manufacturer’s recommendations.
Terrain
The slope and elevation of your lawn can impact sprinkler head spacing. Sprinkler heads should be spaced closer together on slopes to prevent runoff and ensure even coverage.
Soil Type
Different soil types have different water retention capacities. Clay soils require closer spacing than sandy soils due to their slower drainage rates.
Precipitation Rate
The precipitation rate of your sprinkler heads determines how much water is applied per hour. This rate should be adjusted based on the climate and vegetation in your area.
Overlapping Coverage
To ensure that all areas of your lawn receive adequate watering, it is important to overlap the coverage of adjacent sprinkler heads. The recommended overlap ratio is typically 10-20%.
| Factor | Considerations |
|---|---|
| Sprinkler Type | Spray pattern and range |
| Water Pressure | Meets manufacturer’s recommendations |
| Terrain | Slope and elevation |
| Soil Type | Drainage rates |
| Precipitation Rate | Climate and vegetation |
| Overlapping Coverage | 10-20% overlap |
Preparing the Sprinkling Area
Prior to setting the Hunter sprinkler head, it’s crucial to adequately prepare the sprinkling area:
1. Clear Obstructions
Remove any obstacles, such as rocks, sticks, or weeds, from the designated sprinkling zone to ensure unobstructed water flow.
2. Level the Surface
Level the ground where the sprinkler head will be installed. This prevents water from pooling or draining unevenly.
3. Check Soil Moisture
Check the soil moisture in the sprinkling area. If the soil is dry, water it thoroughly before installing the sprinkler head to avoid damaging the roots of nearby plants.
4. Determine Sprinkler Coverage
Determine the coverage area of the sprinkler head based on its specifications. Using a measuring tape or a ruler, mark the perimeter of the desired watering zone. Refer to the table below for recommended coverage distances for different Hunter sprinkler models:
| Model | Coverage Distance |
|---|---|
| PGP-ADJ | 15-30 ft. |
| MP Rotator | 20-45 ft. |
| PS Ultra | 40-70 ft. |
Mark the exact location where the sprinkler head will be installed to ensure optimal water distribution.
Installing the Sprinkler Head Body
To install the sprinkler head body, follow these steps:
1. Dig a small hole
Dig a small hole at the desired location for the sprinkler head, making sure that the hole is deep enough to accommodate the entire head body.
2. Place the head body in the hole
Insert the sprinkler head body into the hole and adjust it so that the top of the body is flush with the ground level.
3. Connect the riser
Screw the riser onto the base of the sprinkler head body, ensuring that it is firmly attached.
4. Connect the supply line
Thread the supply line onto the riser and tighten it securely using a wrench or pliers.
5. Adjust the height and orientation
Adjust the height and orientation of the sprinkler head by rotating the body clockwise or counterclockwise. Use a small screwdriver or a spanner wrench to tighten the locking screws that hold the body in place.
| Tip | Description |
|---|---|
| Set the height so that the spray pattern reaches all areas of the intended coverage zone. | Ensure uniform watering. |
| Orient the head so that the spray pattern aligns with the designated watering areas. | Avoid overwatering or missing sections. |
| Use a level to ensure that the head is installed horizontally. | Promote even water distribution. |
Once the sprinkler head body is installed, you can proceed with connecting the nozzle and adjusting the spray pattern.
Adjusting the Sprinkler Head Height
Once you have determined the correct spacing for your sprinkler heads, you need to adjust their height so that they are level with the ground.
To adjust the height of a Hunter sprinkler head, follow these steps:
1. Locate the adjustment screw on the top of the sprinkler head.
2. Use a screwdriver to turn the adjustment screw clockwise to raise the sprinkler head or counterclockwise to lower it.
3. Turn the screw until the sprinkler head is level with the ground.
Tips for Adjusting Sprinkler Head Height
- Use a level to ensure that the sprinkler head is level with the ground.
- If the sprinkler head is too high, it will spray water over the heads of your plants.
- If the sprinkler head is too low, it will not be able to spray water effectively.
| Adjustment Screw Position | Sprinkler Head Height |
|---|---|
| Clockwise | Raises the sprinkler head |
| Counterclockwise | Lowers the sprinkler head |
Connecting the Sprinkler Head to the Water Supply
To connect the sprinkler head to the water supply, you will need the following tools:
– Adjustable wrench
– Teflon tape
– Sprinkler head
– Riser
Follow these steps to connect the sprinkler head:
1. Wrap the threads of the riser with Teflon tape.
2. Screw the sprinkler head onto the riser.
3. Tighten the sprinkler head using an adjustable wrench. Do not overtighten.
4. Turn on the water supply and check for leaks. If there are any leaks, tighten the sprinkler head further.
Adjusting the Sprinkler Head Spray Pattern
Step 1: Identify the Adjustment Screw
Locate the small screw on the top or side of the sprinkler head. This is the adjustment screw that allows you to change the spray pattern.
Step 2: Insert a Flathead Screwdriver
Gently insert a flathead screwdriver into the adjustment screw.
Step 3: Turn Clockwise or Counterclockwise
Turn the screw clockwise to decrease the spray radius and counterclockwise to increase the spray radius.
Step 4: Adjust the Radius
Make small adjustments until you achieve the desired spray radius. The spray radius will typically range from 4 to 15 feet for residential sprinkler heads.
Step 5: Check the Overlap
Position the sprinkler heads so that there is a slight overlap between their spray patterns. This ensures even coverage across the entire lawn area.
Step 6: Adjust the Height
If the spray pattern is too low or too high, adjust the sprinkler head’s height by loosening the riser and moving it up or down as needed.
Step 7: Check for Uniform Coverage
Turn on the sprinkler system and observe the spray patterns. Make further adjustments as necessary to ensure uniform coverage.
Step 8: Troubleshooting Common Spray Pattern Issues
Table: Common Spray Pattern Issues and Troubleshooting Tips
| Issue | Possible Cause & Solution |
|---|---|
| Uneven spray pattern |
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| Short spray radius |
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| Long spray radius |
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| Spray pattern hitting obstacles |
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Setting a Hunter Sprinkler Head
Installing a Hunter sprinkler head requires precision and attention to detail. Follow these steps to ensure proper operation:
- Mark the location for the sprinkler head using a spray paint or marking dye.
- Dig a hole 4-6 inches deep and wide enough to accommodate the sprinkler body.
- Set the sprinkler body in the hole and twist it clockwise to secure it.
- Connect the supply line to the inlet of the sprinkler body.
- Install the pop-up assembly by inserting it into the sprinkler body and twisting it clockwise.
- Screw on the nozzle and adjust the spray pattern by turning the adjustment screw.
- Fill the hole with soil and tamp it down gently.
- Check for leaks and adjust the nozzles as necessary.
Troubleshooting Common Sprinkler Head Issues
9. Sprinkler Head Not Popping Up
Possible Causes:
- Clogged nozzle
- Damaged riser spring
- Debris in the sprinkler body
- Inadequate water pressure
- Faulty solenoid
Solutions:
- Clean the nozzle using a soft brush or needle.
- Inspect the riser spring and replace if damaged.
- Flush the sprinkler body to remove debris.
- Check the water pressure at the source.
- Replace the solenoid if faulty.
| Symptom | Possible Cause | Solution |
|---|---|---|
| Sprinkler sprays in an inconsistent pattern | Clogged or damaged nozzle | Clean or replace the nozzle |
| Sprinkler leaks from the base | Damaged O-ring or seal | Replace the O-ring or seal |
| Sprinkler sprays too much water | Incorrect nozzle size or pressure | Adjust the nozzle size or reduce the water pressure |
Setting Up a Hunter Sprinkler Head
**Step 1: Digging the Hole**
Determine the necessary hole depth based on the sprinkler model and pipe height. Use a shovel or auger to dig a hole of the appropriate depth and width.
**Step 2: Inserting the Riser**
Insert the riser into the hole, ensuring it is plumb and level. Secure it with a riser elbow or stake.
**Step 3: Connecting to the Pipe**
Attach the sprinkler head to the riser and connect it to the water line using a slip coupling. Apply sealant for a watertight connection.
**Step 4: Adjusting the Spray Pattern**
Rotate the sprinkler head to adjust the spray pattern. Use the adjustment screws on the head to fine-tune the range and direction of the spray.
Maintaining Sprinkler Heads for Optimal Performance
**Step 5: Regular Inspection**
Inspect sprinkler heads regularly for clogs, leaks, or damage. Remove any debris or blockages that may impede water flow.
**Step 6: Spring Cleaning**
During springtime, thoroughly inspect and clean sprinkler heads. Remove any winter debris, such as dirt or leaves, and lubricate moving parts.
**Step 7: Fall Winterization**
Before winter, blow out the sprinkler lines and heads to remove water and prevent freezing damage. Use a compressor or compressed air.
**Step 8: Nozzle Maintenance**
Replace worn or damaged nozzles. Different nozzle sizes and patterns are available for specific watering requirements.
**Step 9: Filtration**
Install a filter on the water supply to remove sediment and debris that can clog sprinkler heads.
**Step 10: Advanced Troubleshooting**
| Issue | Possible Cause | Solution |
|---|---|---|
| No spray | Clogged nozzle, broken riser, frozen water | Clean nozzle, replace riser, thaw frozen parts |
| Uneven spray | Misaligned sprinkler head, clogged filter | Adjust sprinkler, clean filter |
| Leaking | Damaged seal, loose fittings | Replace seal, tighten fittings |
How to Set a Hunter Sprinkler Head
Installing and setting a Hunter sprinkler head is a relatively simple task that can usually be completed in a few minutes. When setting a Hunter sprinkler head, it’s important to first make sure that the sprinkler is connected to a water source and that the water is turned on. Once you’ve done that, you can follow these steps to set the sprinkler head:
1.
Adjust the spray pattern by turning the adjustment screw on the top of the sprinkler head. The spray pattern can be adjusted from a full circle to a partial circle, depending on your needs.
2.
Set the radius of the spray by turning the radius adjustment screw on the side of the sprinkler head. The radius can be adjusted from 4 feet to 15 feet, depending on the size of your lawn or garden.
3.
Set the arc of the spray by turning the arc adjustment screw on the side of the sprinkler head. The arc can be adjusted from 0 degrees to 360 degrees, depending on how much of your lawn or garden you want to water.
People Also Ask
What size nozzle should I use for my Hunter sprinkler head?
The size of the nozzle that you should use for your Hunter sprinkler head will depend on the size of your lawn or garden and the water pressure that you have. For a small lawn or garden, you can use a nozzle that is as small as 1/4 inch. For a larger lawn or garden, you may need to use a nozzle that is as large as 1 inch.
How often should I water my lawn?
The frequency with which you should water your lawn will depend on the type of grass that you have, the climate that you live in, and the amount of rainfall that you receive. In general, you should water your lawn deeply and infrequently rather than shallowly and often. This will encourage the roots of the grass to grow deep into the soil, which will make your lawn more resistant to drought.
