Winterize Your Irrigation System to Prevent Damage

Winter is going to be here before you know it, now is the time to plan for winterizing your sprinkler system (irrigation system). Most irrigation systems will retain a small amount of water in the lateral lines, even if you have automatic drain back valves installed. And the valve boxes are all

irrigation system automatic drain back valve

An automatic drain back valve in an irrigation system. It helps to eliminate water from standing in the system

susceptible to freezing because they are exposed to the elements except for a thin plastic lid. If a valve freezes and breaks, it is usually an expensive repair.

 

Winterizing your system is usually going to require having the installer, or a qualified Landscape Professional, that has knowledge about the operation of an irrigation system, pumps that pump out of the lake for water source, and all of the different timers, valves and related systems that make up an irrigation system, to do it for you. A properly installed irrigation system is quite complex and needs the expertise of someone that has done it for years to service it for you.

LawnMasters has been installing and maintaining irrigation systems for 26 years. One of the first systems we installed was on Kentucky Lake for a nice lady who had recently lost her husband. He had started building an irrigation system, but passed away before he could complete it.

We completed the system for her in 1990, and it is still being used today.

Winterizing an irrigation system involves hooking an air compressor up to the system, utilizing a couple of different options, then charging the system with air pressure to blow the water out of the system.

Winterizing an irrigation system

An irrigation head blowing out any water in the line during winterization

Two problems can surface during this action, one is the system can be damaged if too much air pressure is applied to it. Or second, the system can still be damaged by freezing water if all of the water is not purged from the system. Again, knowledge is king when servicing a system that costs thousands to install.

Once we have the system winterized, we turn it off and put it to bed for the season, ready to be started when needed in Spring, protecting your valuable irrigation system and your investment.

When Spring comes, the system should be ready to just turn on the water, adjust your automatic timer and let it take off again.

When should you have your irrigation system winterized? It depends on what part of the US you are in, when your expected first freeze will be, and if you are doing Fall seeding.

Obviously, the farther North you are, the sooner you will have to winterize your system, an easy rule is to have it done prior to the expected date of your first freeze. If you are done using your system for the year, go ahead and schedule to have it done, or do it yourself if you are able. There is no benefit in waiting, and, if you wait until the last minute before the first expected freeze, you may not be able to get on the schedule to get it done in time.

New Sod, Irrigating

New Sod Being Watered

If you are doing some Fall overseeding, aeration and seeding or have installed sod, you may need to wait until the last minute. Still, if you are planning on waiting right up until the last day or so before freeze is expected, go ahead and call to get on the winterizing schedule and you can still get it done.

The first freeze usually isn’t the killer freeze that damages a lot of water pipes. The first time it freezes, the ground is still above freezing and the temps usually don’t drop that far below freezing, and most components will not freeze.

But after the ground gets cold enough, and the daytime temps stop getting warm enough to keep the ground warm, a moderate freeze can do major damage to the system.

If you have the knowledge and equipment, you can winterize your irrigation system yourself. If you don’t, or you’re not quite sure how to go about it, give us a call, it’s not that expensive and can save you hundreds of dollars in repair bills come Spring time.

If you need help with winterizing your system, you can contact us a number of ways

Call us at 731.642.2876 or 888.664.LAWN

Email us

Or stop in and see us at 124 Whitlock Rd., Puryear, TN.

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