What is Underground Sprinklers?

Underground sprinklers, also known as in-ground sprinkler systems, are a type of irrigation system that is installed below the ground surface to water lawns, gardens, and other outdoor spaces. These systems consist of a network of pipes, valves, and sprinkler heads that are strategically placed throughout the area to be watered. The sprinkler heads pop up from the ground when the system is activated and distribute water in a controlled and efficient manner.

How do Underground Sprinklers Work?

Underground sprinklers work by utilizing a series of pipes that are buried underground and connected to a water source, such as a municipal water supply or a well. These pipes are typically made of durable materials like PVC or polyethylene to withstand the pressure of the water flowing through them. The pipes are laid out in a grid pattern, with each section of the grid controlled by a valve.

When the system is activated, the valves open, allowing water to flow through the pipes. The water is then distributed through the sprinkler heads, which are designed to spray water in a specific pattern and direction. The sprinkler heads can be adjusted to control the distance and angle of the water spray, ensuring that the entire area is evenly watered.

Benefits of Underground Sprinklers

There are several benefits to using underground sprinklers for irrigation:

1. Convenience: Underground sprinkler systems are automated, meaning you can set them to water your lawn and garden at specific times and durations. This eliminates the need for manual watering and ensures that your plants receive the right amount of water.

2. Water Efficiency: Underground sprinklers are designed to distribute water evenly, minimizing waste and reducing water consumption. They can also be programmed to water during the early morning or late evening when evaporation rates are lower, further conserving water.

3. Improved Plant Health: By delivering water directly to the roots of plants, underground sprinklers promote healthier growth and reduce the risk of diseases caused by overwatering or uneven watering.

4. Increased Property Value: Installing an underground sprinkler system can enhance the aesthetic appeal of your property and increase its value. A well-maintained lawn and garden can make a significant difference in the overall appearance of your home.

Installation Process

The installation process for underground sprinklers typically involves the following steps:

1. Design: A professional irrigation specialist will assess your outdoor space and design a system that meets your specific needs. This includes determining the layout of the pipes and sprinkler heads, as well as selecting the appropriate valves and controllers.

2. Excavation: Once the design is finalized, the installation team will excavate the area where the pipes will be laid. This may involve digging trenches or using specialized machinery to create the necessary channels.

3. Pipe Installation: The pipes are then laid out according to the design, with each section connected to the main water supply line. The pipes are secured in place and tested for leaks.

4. Sprinkler Head Installation: The sprinkler heads are installed at strategic locations throughout the area, ensuring proper coverage. The heads are connected to the pipes and adjusted to the desired spray pattern.

5. Controller Setup: The irrigation controller, which is the brain of the system, is installed and programmed according to your watering schedule and preferences. This allows you to automate the watering process and make adjustments as needed.

6. Testing and Adjustment: Once the installation is complete, the system is thoroughly tested to ensure proper functioning. The sprinkler heads are adjusted as necessary to achieve optimal coverage and minimize overspray.

Maintenance and Troubleshooting

Regular maintenance is essential to keep your underground sprinkler system in good working condition. Some maintenance tasks include:

1. Seasonal Inspections: Before the start of each watering season, inspect the system for any damage or leaks. Check the sprinkler heads, valves, and pipes for proper functioning.

2. Adjustments: Over time, the position of the sprinkler heads may need to be adjusted to accommodate changes in landscaping or plant growth. Make sure the heads are spraying in the desired pattern and direction.

3. Cleaning: Remove any debris or dirt that may accumulate on the sprinkler heads, as this can affect their performance. Use a soft brush or cloth to gently clean the heads.

4. Winterization: In colder climates, it is important to winterize the system to prevent freezing and damage. This involves draining the water from the pipes and shutting off the water supply.

If any issues arise with your underground sprinkler system, it is recommended to contact a professional irrigation specialist for troubleshooting and repairs. They have the expertise and tools to diagnose and fix any problems.


Underground sprinklers are a convenient and efficient way to water your lawn and garden. They offer numerous benefits, including water efficiency, improved plant health, and increased property value. The installation process involves careful planning and professional expertise, ensuring that the system is properly designed and installed. Regular maintenance and troubleshooting are necessary to keep the system in optimal condition. By investing in an underground sprinkler system, you can enjoy a lush and healthy outdoor space while conserving water and enhancing the overall appearance of your property.