When to Winterize Your Sprinklers

Why Winterize?

If you have in-ground irrigation live in a climate that experiences freezing winter temperatures, it’s important to prevent damage to your sprinkler system by winterizing it (this is also referred to as "blowing out" your sprinkler system). Winterization is necessary because pipes can freeze and burst if water remains in your sprinkler system during freezing temperatures.

When to Winterize

When you should winterize depends on where you live (and your tolerance for risk). You can use a Frost Date Calculator, which looks at average temperatures over the last 20 years, to determine the average date of the first fall freeze each year.

The “First Fall Frost” date gives you an estimate of when you can expect the first frost of the season. While the first frost or freeze could happen before or after this date, it’s a good idea to get your sprinklers winterized around that time.

Professional Winterization, or DIY?

Rachio recommends contacting a professional for a winterization appointment since special equipment is required for a thorough sprinkler blowout. Learn more about the process and necessary equipment in this support article.

Pro Tip: Don't wait to schedule your sprinkler system blow out! Irrigation professionals often book up for this service weeks or even months in advance.

Winterizing Your Smart Hose Timer

If you water your lawn or garden with a Rachio Smart Hose Timer, winterization couldn't be easier! Just remove the timer from your outdoor faucet or spigot and store it inside (away from freezing temperatures), and you'll be ready to water again in the spring.