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How To Winterize Your Residential Irrigation System

Winterizing your irrigation system is crucial to prevent damage from freezing temperatures. Here's a general guide on how to winterize your irrigation system:

1. Turn off the water supply:

- Shut off the main water supply to the irrigation system. This is usually located in a basement, crawl space, or an underground valve box.

2. Drain the system:

- Open all the drain valves on the irrigation system. These are often located at the lowest points of the system. Allow the water to drain completely from the pipes.

3. Remove water from pipes and components:

- Use an air compressor to blow out any remaining water from the pipes, valves, and sprinkler heads. Attach the compressor to the system using the appropriate fittings and follow these steps:

- Start with the zone that is farthest from the compressor.

- Open one valve at a time and blow out the water until you see only air coming out. Do this for each zone.

- Work your way back toward the compressor, repeating the process for each zone.

- Pay special attention to any low spots where water might collect.

4. Insulate above-ground components:

- Wrap above-ground pipes, valves, and backflow preventers with insulation material. This helps protect them from extreme temperatures.

5. Protect backflow preventers:

- If you have a backflow preventer, it is important to protect it from freezing. You can either remove and store it indoors or insulate it using special covers designed for backflow preventers.

6. Store or protect sprinkler heads:

- Remove above-ground sprinkler heads and store them indoors for the winter. If this is not possible, cover them with insulating materials or special winterizing caps.

7. Check and replace damaged components:

- Before winterizing, inspect the entire system for any damaged or worn-out components. Replace or repair any damaged parts to ensure the system is in good condition for the next season.

8. Consider professional help:

- If you are unsure about winterizing your irrigation system or if you have a complex system, consider hiring a professional irrigation service to ensure proper winterization.

By taking these steps, you can protect your irrigation system from potential damage caused by freezing temperatures during the winter months.

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