Introduction
While Austin, Texas, and the surrounding areas aren’t known for harsh winters, we do experience occasional freezing temperatures that can damage sprinkler systems. Proper sprinkler winterization ensures your system is protected from freezing pipes and costly repairs. In this guide, we’ll walk you through the winterization process, tailored specifically for the Central Texas climate.
Why Sprinkler Winterization Is Important in Austin
Austin’s weather is generally mild, but sudden freezes can wreak havoc on unprepared sprinkler systems. The biggest issue is the main shutoff valve to your sprinkler system. When water left in the valve freezes, it expands, causing it to crack or burst. A properly winterized system helps you avoid expensive repairs and ensures your system is ready to perform when spring arrives.
For more local advice on protecting irrigation systems, check out our sprinkler repair services or more tips on winterization, check out the Irrigation Association’s Winterization Guide.
When to Winterize Your Sprinkler System in Austin
In Central Texas, it’s hard to know when to shut down your system for the season. Especially when we still have 80 degree days in December! But we recommend winterizing your sprinkler system in mid-December, before the first hard freeze. Freezing conditions typically occur overnight and can catch homeowners off guard. Watching the weather forecast and preparing early can save you time and money.
Not sure when to start? Reach out to us through our contact page for personalized advice tailored to Austin’s unique climate.
How to Winterize Your Sprinkler System: Step-by-Step Guide
Follow these steps to prepare your sprinkler system for Austin’s winter weather.
1. Locate the Shut Off Valve
Your sprinkler system has a main shut off valve that turns off the water just to the sprinkler system. In Austin, you’ve got two options of where it is located. 1) Most homes have the valve buried outside near the water meter. Look for a rectangular, green, plastic lid a few feet towards your house from the City water meter. 2) Some homes have an RPZ, which is an above-ground, U-shaped valve either on the side of the house or hidden in a bush close to the City water meter.
Need help finding or shutting off the water supply? Get in touch with us, and we’d be more than happy to help!
2. Drain the Water/Close the valve
If you’ve found that the valve is buried underground, you do not need to drain the water. Just turn the handles so that they are perpendicular to the valve (meaning, up and down). Just one handle is fine. If they haven’t been turned in a while, you may need a pair of vice-grips to help.
If the valve is an RPZ (above-ground) there are an extra couple of steps that you need to do to drain the water out before closing the handles. See a video tutorial here for exact instructions.
Manual Drain Method
- Open the manual drain valves, starting at the highest point in the system.
- Allow water to flow out completely, ensuring no water is left in the pipes.
- Close the valves after draining.
Automatic Drain Method
Some systems in the Austin area come with automatic drain valves that activate when the water supply is shut off. These systems are designed to release water automatically, reducing the risk of freezing. Check your system’s manual to see if this feature applies.
Blow-Out Method
Using an air compressor to blow out water from the system is highly effective but should be done carefully.
- Attach the compressor to the blow-out port of your sprinkler system.
- Set the air pressure to no more than 50 PSI for PVC pipes or 30 PSI for polyethylene pipes to avoid damage.
- Activate each sprinkler zone individually to ensure all water is expelled.
For professional assistance, schedule winterization services with us.
3. Insulate Above-Ground Components
Exposed pipes and RPZs are especially vulnerable to Austin’s occasional freezes. Insulate these components by:
- Wrapping them with foam insulation or heat tape.
- Securing the insulation with weatherproof tape.
- Covering with insulated bags or plastic sheeting for additional protection.
In areas like Pflugerville or Round Rock, where homes may have more exposed outdoor irrigation systems, extra insulation is critical.
4. Turn Off Your Controller
Even though the water is turned off, it’s always a good idea to turn off the controller as well. Double-check the app on your phone if you have a smart controller to make sure they are marked to “off.” Sometimes these “smart” controllers aren’t as smart as they think.
Learn more about upgrading your system with smart irrigation services.
Additional Tips for Sprinkler Winterization in Austin
Schedule Pre-Winter Inspections
Have a professional inspect your system for leaks, weak spots, or components that need replacement before winter. Even in areas like ours, where winters are usually mild, addressing these issues early can prevent damage.
Stay Prepared for Sudden Freezes
Austin’s weather can be unpredictable, with rapid drops in temperature. Keep insulated covers or blankets on hand for quick protection of exposed sprinkler components.
Consider Professional Winterization Services
If you’re unsure about performing sprinkler winterization yourself, let us handle it for you. Our team specializes in winterizing systems across the Austin area, ensuring they’re fully protected and ready for spring.
Common Questions About Sprinkler Winterization in Austin
Do I need to winterize my sprinkler system every year in Austin?
Yes. Even though Austin winters are mild, freezing temperatures occur often enough to make winterization essential. Skipping this process can lead to costly repairs.
What happens if I don’t winterize my sprinkler system?
Unwinterized systems are at risk of freezing, which can crack exposed pipes and valves. Repairs can range from a few hundred to thousands of dollars, depending on the extent of the damage.
Can I winterize my system without an air compressor?
Yes. Austin temperatures don’t stay cold enough to require draining water from the pipes buried underground. Winterization can be as simple as turning some handles.
Schedule Your Sprinkler Winterization with Us
Don’t let Austin’s unpredictable winter weather damage your irrigation system. We provide reliable, professional winterization services for homeowners in Austin and the surrounding areas, including Round Rock, Cedar Park, and Georgetown. Contact us today to schedule your winterization and protect your system from freezing temperatures.
