Ready, Set, Winter! How to Protect Your Irrigation System from the Cold
Is your irrigation system ready for winter’s freeze?
Do you know how to avoid cracked pipes and expensive spring repairs?
Winterizing your irrigation system is a must for homeowners in Toledo and Northwest Ohio.
In this guide, you’ll learn step-by-step how to prepare your system, avoid common mistakes, and ensure it’s safe from freezing temperatures.
By the end of this post, you’ll have all the tools and irrigation maintenance know-how to keep your system safe from winter damage and ensure it’s ready to go when warmer weather returns.
What Is Winterization?
Winterization is the process of preparing your irrigation system for freezing temperatures by removing any water left in the pipes.
This prevents the water from expanding when it freezes, which could otherwise cause pipes, sprinklers, and valves to crack.
By draining the irrigation system and insulating exposed components, winterization ensures your system remains in good condition throughout the cold months and is ready to function again in the spring.
Why Winterizing Your Irrigation System Is Important
When winter hits Toledo and Northwest Ohio, freezing temperatures can wreak havoc on your irrigation system if it’s not properly winterized.
Any water left in the pipes can freeze, expand, and lead to cracks or bursts in the piping.
This not only causes expensive repairs but also leaves you with a non-functional system when spring arrives.
Key Reasons to Winterize
- Prevents freezing damage: Water freezing inside underground pipes can lead to cracks or ruptures. Blowing out the remaining water ensures the system is dry.
- Avoids costly repairs: Replacing burst pipes, damaged sprinklers, or broken backflow preventers is much more expensive than winterizing ahead of time.
- Protects your investment: Your irrigation system is an important part of maintaining a healthy lawn and garden. Proper winterization keeps it in top condition, ready to be used again in the spring.
- Reduces downtime: A properly winterized system means less hassle when it’s time to start watering again. You won’t have to deal with delayed repairs or system issues from cold damage.
Taking steps to winterize your sprinkler system ensures it remains in good working order and saves you money in the long run.
How to Winterize Irrigation System Process: 9 Steps
Winterizing your irrigation system is a simple process that helps prevent costly damage when temperatures drop below freezing.
Follow these 9 essential steps for how to blow out your sprinkler system to protect it from the cold months ahead.
Tools and Materials
Before getting started, gather the necessary tools to ensure a smooth winterization process:
- Air compressor (40-80 PSI, 30-50 CFM)
- Coupler or quick-connect adapter (compatible with your system)
- Safety goggles (to protect your eyes from debris during the blow-out)
- Wrench or screwdriver (for opening and closing valves)
- Insulation tape or foam covers (to protect exposed components like pipes and backflow preventers)
1. Turn Off the Water Supply
Begin by shutting off the water supply to your irrigation system.
The main valve is typically located near your water meter or control box.
Double-check that the backflow preventer is off to ensure no additional water enters the system.
2. Turn Off the Timer or Set It to Rain Mode
If your system has an automatic controller, deactivate it or switch it to rain mode.
This setting keeps your programming intact for spring, preventing the need to reprogram your watering schedule later.
3. Attach the Air Compressor
Next, connect your air compressor to the system using a quick-connect adapter at the hose bib.
Be sure not to direct compressed air through the backflow preventer, as this could cause damage.
4. Set Air Compressor Pressure
Adjust your air compressor’s pressure to the appropriate level based on your piping:
- 40-50 PSI for polyethylene pipes
- 80 PSI for PVC pipes
These levels ensure the system is cleared without damaging any piping.
5. Start with the Farthest Zone
Open the valve for the sprinkler zone furthest from the air compressor.
This allows the air to push any water trapped in the pipes out through the sprinklers.
6. Move to the Next Zone
Once water stops flowing from the first zone, close the valve and move to the next.
Slowly open the next zone’s valve and repeat the process for each zone until all are drained.
7. Disconnect the Compressor
After all zones have been cleared, turn off the air compressor and disconnect it from the system.
8. Release Remaining Pressure
Open the backflow preventer or any other drain outlets to release any remaining air or pressure in the system.
Ensure all valves are securely closed afterward.
9. Open the Drain Back in the Basement (if installed)
If your system includes an indoor drain, open it to allow any leftover water to empty into a cup or bucket.
Dispose of this water properly to avoid any freeze risks.
Pro Tip: Always wear safety goggles during the blow-out process to protect yourself from debris, and be cautious around active sprinkler heads.
Insulate and Protect Above-Ground Components
Once you’ve drained your irrigation system, it’s important to protect the exposed parts that remain above ground.
Properly insulating these components helps prevent freeze damage during the harsh winters in Toledo and Northwest Ohio.
Failing to protect them can lead to irrigation repair costs from issues such as cracks, leaks, and more when temperatures drop below freezing.
How to Protect Your Above-Ground Irrigation System
- Wrap exposed pipes: Use insulation tape or foam covers to wrap any visible pipes or backflow preventers. This adds a layer of protection from the cold and minimizes the risk of cracking.
- Cover valves and connections: Ensure any valves, hose bibs, or connections are properly insulated. Plastic bags tied securely over these parts can help block cold air and moisture. Avoid using materials that block air vents or drain outlets, as this could cause problems with airflow and drainage.
- Insulate the backflow preventer: If your system has a backflow preventer, make sure it is wrapped securely. Be careful not to block any vents or loosen connections. This will help prevent freezing and ensure the backflow device continues to work properly when the system is reactivated in the spring.
By taking these steps, you’ll avoid freeze-related issues, ensuring your irrigation system is in good condition when warmer weather returns.
The Cost To Winterize An Irrigation System
Irrigation system winterization costs start at $249.
The price can increase if your system operates on pumps or wells, has additional controllers, or we agree on additional work before the service.
These add time and labor to shutting down your sprinklers for the winter, which increases the cost.
Alternatively, you can get an annual maintenance package for your irrigation system that starts at $637 per year.
This service includes 3 maintenance visits a year, including the crucial winterization service.
Common Mistakes to Avoid
Even when you know how to winterize your irrigation system, there are several mistakes that can lead to costly repairs.
Many homeowners in Toledo and Northwest Ohio face challenges in preparing their systems for winter.
Let’s cover some common missteps to avoid, ensuring your sprinkler system is fully protected from the cold.
Using Too Much Air Pressure
While blowing out your sprinkler system is essential, using excessive compressed air pressure can damage your pipes and valves.
- Solution: Set your air compressor pressure to the recommended levels: 40-50 PSI for polyethylene pipes and 80 PSI for PVC pipes. Exceeding these limits can cause cracks in your system’s piping.
Forgetting to Drain Backflow Devices
Many homeowners forget to fully drain the backflow preventer, which can leave water trapped in this critical part of the system.
When temperatures drop, freezing water inside the backflow preventer can cause it to crack.
- Solution: Always remember to drain the backflow preventer and ensure all related valves are open to let out any remaining water.
Overheating Sprinkler Components
Running compressed air for too long without water flowing through the sprinklers can cause components like plastic gears to overheat and warp.
- Solution: Turn off the air compressor as soon as water stops flowing from each zone. This avoids overheating and ensures your system’s internal components stay intact.
Failing to Winterize Systems Connected to Wells or Pumps
If your irrigation system is connected to a well or pump, additional steps are required to fully prepare it for winter.
Without proper attention, the parts of an irrigation system can suffer freeze damage.
- Solution: Follow specific instructions in your system’s manual, or consult a professional to ensure your pump and water supply are properly shut down and protected with insulation.
The best way to avoid these common mistakes and reduce the risk of freeze damage is to hire a professional service provider such as Simmons Landscape and Irrigation.
Professional vs. DIY Irrigation System Winterization
When it’s time to winterize your sprinkler system, you have two main options: take the DIY route or hire a professional.
Each approach has its advantages, but the best choice depends on your comfort level, tools, and the complexity of your system.
DIY Winterization
Taking the DIY route allows you to handle the process at your own pace and on your own schedule.
However, it does require some knowledge of your irrigation system and the right tools.
- Cost-effective: You’ll save money on labor, but you’ll need to have the right equipment, including an air compressor and safety gear.
- Control over the process: You can work around your schedule and blow out the system when you’re ready.
- Learning curve: DIY winterization requires knowledge of the valves, controller, and how to safely apply the correct air pressure during the blow-out. Follow the link to get an overview of how an irrigation system works.
- Risk of damage: Without proper expertise, you could use too much pressure, causing cracks in your pipes or damaging your valves.
Professional Winterization
Hiring a professional is a hassle-free way to ensure your system is fully protected from winter weather.
Experts understand the nuances of different irrigation systems, minimizing the risk of error.
- Convenience: Professionals handle everything, from shutting off the water supply to insulating exposed components.
- Expertise: They know exactly how much air pressure to use and how to properly drain each zone to avoid damage.
- Higher upfront cost: While you’ll pay a service fee, this could save you from costly repairs due to improper winterization.
- Peace of mind: You won’t have to worry about missing any steps or damaging components, especially in complex setups with wells or multiple zones.
Ultimately, DIY winterization can work for simple systems, but professional service offers the expertise and security that ensure your sprinkler system is ready to withstand Toledo’s cold months.
FAQs About Winterizing Irrigation Systems
When it comes to preparing your irrigation system for winter, there are often a lot of questions about the right approach.
Below, we answer some of the most common queries from homeowners in Toledo and Northwest Ohio to help you protect your sprinkler system and avoid costly mistakes.
Can I Winterize My Irrigation System Without an Air Compressor?
Yes, if your system has manual or automatic drain options, you can drain the pipes without an air compressor.
However, the blow-out method with compressed air is the most effective way to ensure all water is removed, particularly from hard-to-reach areas like low points in the system.
Without fully clearing out the water, there’s a risk of freeze damage.
What Happens If I Don’t Winterize My Irrigation System?
If you don’t properly winterize your sprinkler system, any water left inside the pipes may freeze.
When this happens, the water expands, potentially causing your pipes and valves to crack.
This can result in expensive repairs when you’re ready to start using the system again in the spring.
How Much PSI Do I Need for the Blow-Out Method?
When using the blow-out method, it’s essential to set your air compressor to the correct pressure:
- 40-50 PSI for polyethylene pipes
- 80 PSI for PVC pipes
Exceeding these limits can damage the piping, so always double-check the pressure before starting.
When Should I Winterize My Irrigation System?
You should plan to winterize your system before the first hard freeze, which typically occurs in late fall.
In Toledo and Northwest Ohio, it’s best to winterize by mid-November to avoid any unexpected cold snaps that could cause damage.
Can I Use My Shop Vac Instead of an Air Compressor?
No, a shop vac doesn’t provide the necessary power or pressure to remove water from the system’s pipes effectively.
An air compressor with at least 40 PSI is required for a proper blow-out.
What Are Some Irrigation Maintenance Tasks That Can’t Be Done During the Winterization Process?
- Replacing the indoor shutoff valve: This service should be performed by a licensed plumber during the winter.
- Replacing sprinkler heads that aren’t off the line: This is a task that’s best left for the spring.
- Blowing out frozen lines: Once lines are frozen, it’s nearly impossible to perform a proper blow-out. This makes it crucial to winterize your system before the first freeze.
By following these guidelines and understanding the risks, you can confidently prepare your irrigation system for winter and avoid unnecessary damage.
Protect Your Irrigation System with Simmons Landscape and Irrigation
By now, you’ve learned how important it is to winterize your irrigation system and protect it from the cold weather.
Taking the time to follow these steps prevents costly damage and ensures your sprinkler system is ready to perform when spring arrives.
At Simmons Landscape and Irrigation, we understand the complexities of preparing irrigation systems for winter.
Our expert team can handle the entire winterization process, giving you peace of mind that your system is fully protected.
Don’t leave your irrigation maintenance to chance—fill out our contact form today or give us a call!
Let us take care of your lawn’s irrigation needs so you can enjoy a stress-free winter season.
