boise sprinkler blowout

Boise Sprinkler Blowout: Protecting Your Irrigation System from Winter Freeze

Boise, Idaho, with its fluctuating temperatures and freezing winters, requires homeowners to take precautions to protect their sprinkler systems. A sprinkler blowout, also known as winterizing, is the process of removing water from your irrigation system’s pipes and sprinkler heads using compressed air, preventing damage from freezing and expansion.

What is a Sprinkler Blowout and Why is it Important in Boise?

A sprinkler blowout is essentially the evacuation of water from your underground irrigation system using an air compressor. When water freezes, it expands. If water remains in your sprinkler lines during the winter, this expansion can cause pipes to crack, sprinkler heads to break, and backflow preventers to fail. These damages can lead to costly repairs in the spring.

Boise’s climate is characterized by cold winters with temperatures often dropping below freezing for extended periods. This makes sprinkler blowouts a crucial part of annual home maintenance for Boise residents with irrigation systems. Delaying or skipping this process can result in significant and avoidable damage.

How to Perform a Sprinkler Blowout

While some homeowners opt to DIY their sprinkler blowout, it’s often best left to professionals. Here’s a general overview of the process:

1. Shut off the Water Supply: Locate the main water shut-off valve for your sprinkler system and turn it off.
2. Connect the Air Compressor: Attach an air compressor to the appropriate fitting on your system (often a blowout adapter or a hose bib).
3. Adjust the Air Compressor: Regulate the air compressor to a safe pressure level, typically between 40 and 80 PSI, depending on the type of pipes in your system. Consult a professional or refer to manufacturer recommendations for your specific system. Excessive pressure can damage the pipes. It is important to understand the concept of pressure to avoid damaging your irrigation system.
4. Blow Out Each Zone: Systematically open each zone of your sprinkler system, allowing compressed air to push out the remaining water. Do this in short bursts to avoid overheating the compressor or damaging the pipes.
5. Repeat if Necessary: Repeat the process for each zone until no more water comes out.
6. Insulate the Backflow Preventer: Wrap the backflow preventer with insulation to protect it from freezing temperatures.

Important Considerations: Working with compressed air can be dangerous if not done correctly. Always wear safety glasses. If you are uncomfortable with any part of this process, contact a qualified irrigation professional.

When Should You Schedule a Sprinkler Blowout in Boise?

The ideal time for a sprinkler blowout in Boise is typically in October or early November, before the first hard freeze. Waiting too long increases the risk of damage from early cold snaps.

Benefits of Hiring a Professional

While DIY is possible, a professional irrigation technician has the experience and equipment to perform a thorough blowout. They can also identify potential issues with your system that you might miss, preventing costly repairs down the road. They’ll have the proper adapters, air compressors, and knowledge to ensure the job is done safely and effectively.

FAQs about Sprinkler Blowouts in Boise

Can I use a shop vac to blow out my sprinklers?

No, a shop vac does not provide sufficient pressure or volume of air to effectively blow out a sprinkler system. You need a proper air compressor.

What happens if I don’t blow out my sprinklers?

You risk cracked pipes, broken sprinkler heads, and damage to your backflow preventer, leading to costly repairs in the spring.

How much does a sprinkler blowout cost in Boise?

The cost varies depending on the size of your system and the company you hire, but typically ranges from $75 to $200.

How long does a sprinkler blowout take?

The process usually takes between 30 minutes to an hour, depending on the complexity of your sprinkler system.

Is it necessary to insulate my backflow preventer after a blowout?

Yes, insulating your backflow preventer provides an extra layer of protection against freezing temperatures and potential damage.

Summary

Protecting your sprinkler system from freezing temperatures is crucial for Boise homeowners. A sprinkler blowout, performed correctly, removes water from your system, preventing costly damage caused by freezing and expansion. Whether you choose to DIY or hire a professional, winterizing your sprinkler system is a wise investment to ensure a healthy and functional irrigation system in the spring.