Tips for the Successful Winterization of Your Irrigation System

As the colder months approach, it's important to prepare your irrigation system for winter. Proper winterization will protect your equipment from freezing temperatures, ensuring it’s ready for the next season. If you’ve just applied your last irrigation cycle for the year, now is the time to winterize your irrigation system. Neglecting this process could lead to costly repairs, including burst pipes and damaged equipment. To avoid these issues, here are some key tips for winterizing your system.

 

"I've Just Applied My Last Irrigation Cycle for the Season, Now What?"

Once your final irrigation cycle for the season is complete, it’s time to start thinking about the winterization process. The main goal is to remove as much water as possible from the pipes, valves, and sprinklers to prevent it from freezing and expanding, which can cause cracks and other damage. Properly winterizing your system will save you both time and money when spring comes back around.

 

Best Practices for Preparing Your Irrigation System for Winter

Winterizing your irrigation system involves more than just shutting it off. Here are some best practices to follow:

Turn Off the Water Supply: The first step in the winterization process is to turn off the main water supply to your irrigation system. This prevents any new water from entering the system during the winter months.

Shut Down the Controller: Most modern irrigation systems have an automatic controller. Set it to the “off” or “rain” setting for the winter. Some controllers also have a “winterize” mode, which will help prevent the system from activating accidentally during winter.

Protect Valves and Pipes: Insulate any exposed pipes or backflow prevention devices to protect them from freezing temperatures. Wrapping them in insulation tape or foam will prevent freezing and extend the life of your irrigation system’s components.

Drain the Water: The most crucial step in winterizing is draining all remaining water from the system. Even small amounts of water left in the pipes or valves can freeze, expand, and cause damage. There are three main methods for draining water from your irrigation system: manual drain, automatic drain, and water blowout.

 

Three Basic Methods for Draining Leftover Water

There are three primary methods for removing water from your irrigation system. The method you choose will depend on the type of system you have and your personal preference. Each method is effective when done properly.

1.     Manual Drain:

In a manual drain system, you must open the manual drain valves at the lowest points in the system to allow the water to flow out naturally. This method is relatively straightforward but requires attention to detail to ensure that all water has been drained. Walk through your system and open each valve to allow water to escape. Be sure to close the valves once the water has drained completely.

2.     Automatic Drain:

Some irrigation systems have automatic drain valves installed. These valves open automatically when the water pressure in the system drops below a certain level. To activate this, simply shut off the water supply, and the valves will open to release the remaining water. While convenient, it’s still a good idea to walk through the system to confirm that all the valves have been properly drained.

3.     Water Blow Out:

The water blowout method uses compressed air to blow out any remaining water from the system. This is the most effective way to clear out every last drop of water, but it requires the right equipment. To perform a blowout, connect an air compressor to the irrigation system and gradually increase the air pressure to push water out of the pipes and sprinklers. It’s essential not to over-pressurize the system, as this can cause damage to the components.

For those with farm irrigation systems or golf irrigation layouts, the water blow-out method is often the best choice, as it ensures no water is left behind.

 

Why Winterization Is Crucial for Irrigation Systems

Winterizing your system protects it from freezing temperatures that can cause pipes to crack, valves to malfunction, and sprinklers to break. When water freezes, it expands, and any leftover water in your irrigation system can wreak havoc during cold weather. Proper winterization prevents damage, saving you from expensive repairs in the spring.

Winterization extends the lifespan of your irrigation system. By caring for your equipment and performing regular maintenance, you reduce the wear and tear caused by extreme temperatures. In the long run, this will help keep your system running smoothly for years to come.

 

Additional Tips for Successful Winterization

Check for Leaks Before Winterizing: Before you begin the winterization process, check for any leaks in your system. Fixing them now will save you from dealing with bigger issues later.

Monitor Weather Conditions: Perform the winterization before the first hard freeze of the season. Pay attention to the weather forecast and plan accordingly.

Hire a Professional: If you’re unsure about performing a blowout or managing the winterization yourself, consider hiring a professional. They have the right tools and expertise to winterize your system quickly and efficiently.

 

Need help with the winterization of your irrigation system? Vanden Bussche can help. Call us with any questions or to book a member of our service team to come out and assist with your winterization process: 1-800-387-RAIN (7246).