As the cold Canadian winter approaches, one of the most important tasks for homeowners is to learn how to properly winterize sprinkler system setups. If not prepared, your sprinkler system’s pipes can freeze, leading to costly repairs. This guide provides step-by-step instructions to ensure your system is ready for winter, along with tips for when to call a professional.
Tools and Materials for Sprinkler System Winterization
Before starting, it’s essential to gather the right tools and materials for the job. Here’s what you’ll need to winterize your sprinkler system effectively.
- Air Compressor: Necessary for systems without manual drains to blow out water from the pipes.
- Wrenches: To disconnect or adjust parts of the system.
- Sprinkler Key: For turning off valves.
- Protective Gear: Goggles and gloves are useful, especially when working with high-pressure air compressors.
- Insulation Material: Pipe insulation or foam covers for exposed pipes.
Step-by-Step Draining for Sprinkler Winterization
There are several types of systems and the method you use to winterize your sprinkler setup depends on whether you have a manual, automatic, or blow-out system. The blow-out method is the most effective but requires the use of an air compressor, which you may not have. No matter which you have, they each start with the same first step: turning off the water supply at the main valve. Once you’ve done that, figure out which sprinkler system you need to winterize, and follow the relevant steps below.
Manual Drain Systems
- Drain the System: Open the manual drain valves located at low points in the piping. Allow all water to flow out until the pipes are completely empty.
- Open the Sprinkler Valves: Turn on each sprinkler valve to release any remaining water in the pipes. After the water has drained, close the valves.
Automatic Drain Systems
- Activate the Automatic Drains: These drains automatically release water when the pressure falls below a certain level. To trigger this, run a cycle with the system to drop the pressure.
- Check for Water: Even with an automatic system, it’s important to open the valves manually and ensure no water remains in the lines.
Blow-Out Method
- Attach Air Compressor: Connect the air compressor to the blow-out port on your sprinkler system.
- Blow Out Water: Starting with the zone farthest from the compressor, use short bursts of air to push water out of the lines. Move through each zone until all water is removed.
- Shut Off Compressor: Once water stops spraying from each zone, turn off the compressor and disconnect it.
Tips for Preventing Frozen Sprinkler Pipes
After following how to drain sprinklers to winterize your irrigation system, try these additional small steps to help prevent pipes from freezing during the coldest months.
- Insulate Exposed Pipes: Use pipe insulation or foam covers to protect any above-ground pipes and sprinkler components from freezing temperatures.
- Check Backflow Preventer: If your system has a backflow preventer, wrap it with insulation material or cover it with a specially designed backflow cover to prevent damage from freezing.
- Disconnect Hoses: Remove any garden hoses attached to the sprinkler system and ensure all valves are securely closed.
When to Call a Professional for Assistance
While many homeowners prefer DIY sprinkler system winterization, there are situations when it’s best to call in a professional. If you have any doubts, consider hiring an expert to ensure your system is properly winterized and ready for the next season.
- You’re Unsure About the Blow-Out Method: Using an air compressor incorrectly can cause serious damage to your sprinkler system. A professional can ensure the job is done safely.
- Your System Is Large or Complex: For larger systems or those with multiple zones, a professional may be able to winterize the system more efficiently.
- You Encounter Frozen Pipes: If you notice frozen or burst pipes, it’s important to get professional help to assess and repair the damage.
Properly winterize sprinkler system setups to protect them from freezing temperatures and you’ll save yourself time, money, and frustration come spring. Whether you follow the steps on your own or call in a professional, taking action before the first freeze is key to keeping your sprinkler system in good working condition.
