Servicing Greater Tewksbury, MA and Surrounding Towns

Installation of a sprinkler system: Mastering 2025

 

Mastering the Art of Sprinkler System Installation

If you’re wondering how to install a sprinkler system, here are the key steps:

  1. Plan Your System: Assess your yard, water pressure, and flow rate. Map out zones and choose components.
  2. Prepare the Ground: Call for utility marking. Dig trenches for pipes.
  3. Lay Pipes & Connect: Install main and lateral pipes. Connect to your water supply and install valves.
  4. Install & Wire: Place sprinkler heads. Wire your system to the controller.
  5. Test & Adjust: Flush, test for leaks, and fine-tune head coverage.
  6. Maintain: Perform regular upkeep and proper winterization.

The installation of a sprinkler system is a rewarding project that results in a lush, green lawn without the daily chore of manual watering. Automatic sprinklers save water and keep your landscape looking its best by delivering water precisely where and when it’s needed.

This guide covers every step, from initial planning to final adjustments. Scott McLeod, owner of McLeod Landscaping Inc., has over three decades of experience in creating beautiful landscapes, including expert installation of a sprinkler system for residential and commercial properties. Our comprehensive guide will walk you through every step, ensuring your lawn thrives.

Infographic explaining the benefits of an automatic sprinkler system, including water savings, time savings, and improved lawn health. - installation of a sprinkler system infographic 3_facts_emoji_blue

Handy installation of a sprinkler system terms:

Phase 1: Planning and Preparation for Your Sprinkler System

Before you dig, thorough planning is the most crucial part of any installation of a sprinkler system. Careful assessment, smart design, and choosing the right components are vital for an efficient system. This groundwork ensures water efficiency, optimal coverage, and compliance with local codes. For more detailed insights, read our guide on Choosing the Right Irrigation System for Your Landscape.

Assessing Your Property and Water Supply

The first step is understanding your property and water supply, which is crucial for designing an effective system.

Before digging, call 811 a few days in advance to have underground utility lines marked. This free service prevents dangerous and costly accidents. Never dig until all lines are clearly marked.

Next, check with your local building department in areas like Andover, MA, or Chelmsford, MA, for necessary permits. Municipalities often have specific ordinances regarding irrigation systems, including requirements for backflow prevention devices.

To design an efficient system, you need to know your water’s pressure and flow rate.

  • Measuring Static Water Pressure (PSI): Attach a pressure gauge to an outside faucet with all other water in your home turned off. The reading is your static water pressure. Most irrigation systems need between 40 to 65 PSI for optimal performance.
  • Determining Flow Rate (GPM): This tells you how much water is available. Time how long it takes to fill a measurable container (like a 5-gallon bucket) from an outside spigot. Then, calculate: (Container size in gallons / time in seconds) * 60 = Gallons Per Minute (GPM). This rate helps determine how many zones you can run simultaneously.
  • Identifying Water Meter and Service Line Size: Your water meter size (e.g., 5/8 inch, 3/4 inch, or 1 inch) is usually printed on the meter or your utility bill. To find the service line size, wrap a string around the water pipe, measure its length, and compare it to a conversion chart to determine the pipe’s diameter.

Understanding these measurements is crucial for designing an efficient system. For more details, see our guide on How to Install a Lawn Sprinkler System.

Mapping Your Yard and Creating Zones

With your water supply assessed, it’s time to map your yard and create a blueprint for your system.

hand-drawn sprinkler system layout on graph paper - installation of a sprinkler system

  • Sketching Your Property: On graph paper, draw your property to scale, marking permanent features like your house, driveway, walkways, trees, and garden beds.
  • Sun vs. Shade Areas (Hydrozoning): Divide your yard into watering zones based on sun exposure and plant type (turf vs. garden beds). This process, called hydrozoning, prevents overwatering in shady areas and ensures sunny spots get enough water.
  • Head-to-Head Coverage: This rule ensures optimal coverage. Each sprinkler head should spray far enough to reach the adjacent one, preventing dry spots.
  • Planning Pipe Routes: Plan the most direct routes for your pipes to reduce pressure loss. Consider future expansion by planning for extra valves at your manifold.

Choosing the Right Sprinkler Components

Selecting the right components is vital for a durable and efficient system. Here’s a breakdown of the main parts:

Sprinkler Head Type Ideal Use Typical Spray Radius (Feet) Precipitation Rate Considerations
Impact Large lawn areas, durable 15-30 Can be high, good for established lawns. Installed 2-3 feet apart.
Fixed Pop-Up Small-to-medium lawn areas, precise shapes ~10 Higher precipitation, good for smaller, uniform areas. Installed ~18 feet apart.
Rotary Nozzles Medium-to-large lawn areas, water efficiency 25-30 diameter Lower precipitation rate, reduces runoff. Installed ~14 feet apart.
Large Area Rotors Very large lawn areas (25’x25’+) 25-52 Lower precipitation, efficient for big spaces. Spaced 25-40 feet apart.
Small Area Spray / Rotating Stream Smaller lawns (under 25’x25′) 4-17 Moderate to high, depends on nozzle. Spaced 8-17 feet apart.
Drip Irrigation Flowerbeds, shrubs, trees, vegetable gardens Targeted, no spray Very low, targeted application directly to roots, highly efficient.

Key components include:

  • Pipes: Schedule 40 PVC is recommended for main lines, while Class 200 PVC can be used for lateral lines. Flexible Polyethylene (Poly) Pipe is often used in colder climates.
  • Automatic Valves: These control water flow to each watering zone and are grouped in a valve manifold.
  • Valve Manifold: This is an assembly of your automatic valves, placed in an accessible valve box for easy maintenance.
  • Smart Controllers/Timers: The brain of your system. Wi-Fi-enabled models allow you to manage watering from your smartphone.
  • Rain and Freeze Sensors: These devices save water and protect your system. Rain sensors pause watering when it rains, and freeze sensors stop irrigation when temperatures drop near freezing.

For more on smart options, check out the Benefits of Installing a Smart Irrigation System.

Phase 2: The Complete Guide to the Installation of a Sprinkler System

With the planning complete, it’s time to begin the physical installation of a sprinkler system. This phase involves digging, connecting, and assembling the components into a functional irrigation network. For a general overview, you can refer to our article on How Are Irrigation Systems Installed?.

person using a trenching machine to dig a narrow trench in a yard - installation of a sprinkler system

Digging Trenches and Laying the Pipes

Trenching is labor-intensive but crucial for protecting your system. For small yards, you can dig by hand, but for larger properties, renting a gas-powered trencher is recommended. Many rental dealers in towns like Burlington, MA, offer delivery and pickup.

Trench depth is key for longevity. Main sprinkler lines should be buried 10 to 12 inches deep, while lateral lines can be 6 to 8 inches deep. Always check your local frost line requirements.

To get pipes under walkways or driveways, use a water-powered boring technique. Attach a jet spray nozzle to a PVC pipe and use water pressure to tunnel through the soil.

When laying pipes, make clean cuts. For PVC, apply solvent primer and then cement to both the pipe and fitting, giving it a quarter-turn for a solid bond. For Poly pipe, secure connections with clamps. Always leave enough space between valve connections for future maintenance. For more guidance, check out our guide on Putting in a Lawn Sprinkler System.

Connecting to the Water Main and Assembling the Manifold

Connecting to the water main is a critical step in the installation of a sprinkler system.

fully assembled valve manifold inside a valve box - installation of a sprinkler system

First, shut off the main water supply to your house. Then, cut into the main line and install a tee fitting. If you’re not comfortable working with your main water line, hire a professional plumber.

Backflow prevention is required by code in most areas to prevent contaminated water from flowing back into your drinking water. A Pressure Vacuum Breaker Assembly (PVBA) is common. Install it according to local codes and manufacturer instructions.

Your valve manifold is the control center where zone valves are grouped. You can build one or use a pre-made kit. Place the assembled manifold inside a valve box with about 2 inches of gravel at the bottom for drainage. For more details, explore our page on Install Irrigation.

Key considerations for the installation of a sprinkler system

With pipes in place, it’s time for the sprinkler heads and electrical connections.

Before attaching any sprinkler heads, flush your system by turning on the water and manually operating each valve to push out any dirt or debris.

When installing sprinkler heads, use flexible piping (swing pipe) to connect each head to the lateral line. This allows for easy height adjustment and prevents damage.

Choose the right nozzles for your coverage needs, then adjust the spray patterns to ensure proper head-to-head coverage. Impact heads can reach 15-30 feet, fixed pop-up heads spray about 10 feet, and rotary nozzles cover a 25-30 foot diameter.

The electrical wiring is straightforward. Run low-voltage direct burial wire from each valve to your controller. Use waterproof silicone-filled wire connectors for all splices to prevent moisture damage.

Mount your controller on a wall in a garage or shed. Run the wires through PVC conduit from the ground to the controller for protection. Connect the wires to the corresponding terminals.

To label your zones, strip and touch individual wires to a powered terminal on the controller. When a zone activates, you’ll know which wire controls it. Consider running extra wires for future expansion. For a detailed look at this process, see our guide on How to Install In-Ground Irrigation System.

Phase 3: Finalizing and Maintaining Your New System

With the physical installation of a sprinkler system complete, this final phase focuses on testing, fine-tuning, and long-term care. According to the EPA, properties with large irrigated landscapes can spend as much as 30% of their water bill on irrigation, so optimizing your system is key.

Testing, Adjusting, and Backfilling

This phase focuses on testing and fine-tuning the system.

First, flush the system by running each zone to clear out any debris from the pipes. Next, check for leaks by running the system and inspecting all connections for pooling water or damp spots. Repair any leaks you find.

Now, adjust spray patterns. Run each zone and fine-tune the spray pattern, arc, and radius of each head. Ensure you have head-to-head coverage, where each head’s spray reaches the adjacent one. This is crucial for 100% coverage and prevents dry spots.

Once you’re confident everything is working, backfill the trenches. Overfill them slightly, as the soil will settle over time. Tamp the soil gently around the pipes to avoid damage.

Essential Sprinkler System Maintenance and Troubleshooting

Regular maintenance prevents costly repairs and ensures your system runs efficiently.

Routine inspections should be done monthly. Walk your property and look for signs of trouble like pooling water, dry spots, or damaged heads. Cleaning filters in sprinkler heads and valves is a simple task that prevents clogs and ensures proper water flow.

Common problems include:

  • Clogged Heads: The most frequent issue. Turn off the system, lift the head, and remove the nozzle and filter for cleaning.
  • Leaky Valves: May indicate a faulty valve that needs repair or replacement.
  • Low Pressure Issues: Heads may not pop up or the spray seems weak. This could be due to a leak or a partially closed valve.
  • Broken Heads: Often caused by lawnmowers. Simply dig around the damaged head, unscrew it, and screw in a replacement.
  • Controller Malfunctions: Check wiring and power. A simple reset can often resolve the issue.

For professional help, visit our Lawn Sprinkler System Contractor page.

How to Properly Winterize Your Sprinkler System

In colder climates like Concord, MA, or Lowell, MA, winterizing your sprinkler system is essential to preventing freeze damage from expanding ice that can crack pipes and heads.

  1. Shut off the water supply to the irrigation system at its dedicated shut-off valve.
  2. Drain the system using any installed manual or automatic drain valves.
  3. Use the blow-out method for the most effective draining. Use an air compressor (typically set between 50-100 PSI) connected to a blow-out port. Open one zone at a time and blow compressed air through the lines until only mist or air comes out. Repeat for all zones.
  4. Protect your backflow preventer by draining it completely. If possible, insulate it or remove and store it in a warm place for the winter.

Taking these steps protects your investment and ensures your installation of a sprinkler system is ready for spring.

DIY vs. Professional Installation: When to Call the Experts

While a DIY installation of a sprinkler system can be rewarding, it can also present unexpected challenges. What starts as a weekend project can become complex when you encounter issues like tunneling under a walkway or tapping into your home’s main water line.

Here’s when calling in the experts might be your best bet:

  • Project Complexity: Large, sloped, or unusually shaped yards with diverse landscaping require intricate designs that professionals are trained to create.
  • Time Commitment: A simple two-zone system can take 16-20 hours of labor, not including the planning phase. This can consume multiple weekends.
  • Specialized Tools: While you can rent a trencher, other tools like pipe pullers may be needed, which can be complex to operate.
  • Costly Mistakes: An incorrect assessment of water pressure or using the wrong pipe size can lead to inefficient watering, high water bills, or system damage from issues like “water hammer” (surging pressure).
  • Local Code Compliance: Professionals are well-versed in local building codes, permits, and crucial backflow prevention requirements, ensuring your installation is done correctly and safely.

If your property is complex, you’re facing challenging water main connections, or you simply want the peace of mind that comes with a warrantied, professional result, hiring an experienced company like McLeod Landscaping is often the best choice. With over 30 years of experience serving clients across the Merrimack Valley, including towns like Tewksbury, Andover, and Billerica, our team ensures your installation of a sprinkler system is designed for optimal performance. For professional help, explore our page on Irrigation System Installers.

Frequently Asked Questions about Sprinkler System Installation

When planning your installation of a sprinkler system, homeowners naturally have questions. Here are the most common ones we hear.

How deep should sprinkler lines be buried?

The depth of your sprinkler lines depends on their function and local climate. Main lines should be buried 10 to 12 inches deep to protect them from damage and frost. Lateral lines that run to individual sprinkler heads are typically buried 6 to 8 inches deep. However, always check your local building codes for specific requirements in your area before starting your installation of a sprinkler system.

How much does a DIY sprinkler system installation cost?

The cost for a DIY installation of a sprinkler system varies based on yard size, component quality, and tool rental needs. On average, homeowners might spend anywhere from $500 for a basic system to $4,500 or more for larger installations. This wide range reflects the many variables involved.

Please note, these are average costs based on internet data and do not reflect actual pricing for professional services. For an accurate quote on professional installation, see our page on Cost to Install Lawn Sprinkler System.

What is the best time of day to water my lawn?

The best time to water your lawn is early in the morning, typically between 4 a.m. and 10 a.m. Watering during this window is most efficient because it minimizes water loss from wind and evaporation, ensuring more water reaches the roots. It also reduces the risk of fungal diseases that can develop when grass stays wet overnight.

Morning watering allows moisture to soak deep into the soil before the day’s heat arrives, encouraging deeper root growth and making your lawn more drought-resistant. Avoid watering in the evening or midday.

A Greener Lawn is Within Your Reach

You now have a roadmap for mastering the installation of a sprinkler system, a project that adds significant convenience and beauty to your home. A well-designed system saves you time, conserves water, and boosts your home’s curb appeal, giving you a healthy, green lawn with minimal effort.

Whether you choose a DIY approach or decide to bring in the experts, a beautiful, water-efficient landscape is an achievable and rewarding investment. It adds value and charm to your property, allowing you to enjoy a thriving outdoor space season after season.

Ready to transform your property and enjoy that dream lawn? Don’t hesitate to explore our expert irrigation and sprinkler services. We’re here to help you achieve a greener, healthier outdoor space you’ll love.

 

Contact Us Today

Contact McLeod Landscaping today at (978) 640-0957 or click here to schedule a consultation for retaining wall installation. Let our experienced team design and install a functional and visually appealing retaining wall that enhances your landscape.

McLeod Landscaping From Trench to Turf: Mastering Sprinkler System Installation

Table Of Contents

Landscape & Hardscape Professionals Servicing , MA

McLeod Landscaping, Inc.

1881 Main St Unit 1, Tewksbury, MA 01876

Stay Connected