Installing a lawn sprinkler system can save you time as well as keep the grass looking green and healthy during the summer months. However, when the snow flies, the system needs to be protected from the elements. If you don’t properly winterize the system, you could face expensive damage come spring, including broken pipes, cracked valves, and burnt out motors. 

What Are the Necessary Steps to Winterizing Sprinkler Systems? 

1. Remove All Water

You have to prevent water in the sprinkler system pipes from freezing and expanding, which will cause the pipes to crack and break. To do this, you’ll need to remove all remaining water. One way is by “blowing out” the pipes using an air compressor. Following the instructions for your specific irrigation system, connect an air compressor to the designated blow out port, and blow compressed air through the pipes.

This will cause the sprinkler heads to pop up from the ground and discharge any water. Keep in mind that this process goes quickly, and you typically only need to blow air into the pipes for less than a minute; leaving the air on too long can damage valves and seals. 

2. Shut Down Controllers

Automatic sprinkler systems run on controllers that automatically turn the sprinklers on and off on a timer or according to rainfall. To prevent the system from engaging in the winter, shut down the controller. Your system may have a winter or rain mode that will keep the valves from engaging, but still maintain the clock and all of your settings.

If not, or if your system runs on a pump, you may wish to completely disconnect the system to ensure it remains off all winter. With this method, you’ll need to reprogram the system and all of your settings in the spring. 

3. Insulate Valves and Backflow Preventers

If any parts of your sprinkler system are above ground, such as the valves, back flow preventers, and ports, insulate them against the elements.

This also includes the main water shut off valve, after you’ve cut water to the system. You can use insulating tape or foam covers to do this. Take care that you don't cover any drains or airflow outlets, though, as that can result in damage like freezing. 

If your sprinkler system needs to be winterized, call on the professionals at USA Hoich Irrigation in Omaha, NE, to get the job done right and quickly. Serving Douglas County since 1984, they are experts in lawn irrigation systems and also provide exceptional lawn and garden care as well as unbeatable customer service. To schedule a sprinkler winterization appointment, call (402) 896-5899 or learn more about their offerings online.