The freezing point of water is 0℃ or 32℉. It is the point at which liquid H2O turns to a solid which we then call ice. Water expands as it turns into ice, therefore can cause damage to pipes and other items which are exposed to freezing temperatures. Depending on your local winter temperature, you may need to consider winterizing your outdoor irrigation before freezing temperature approaches.
Lets examine the winterizing procedure of each component of your outdoor irrigation system, starting with the timers.
The Link-Tap system and the Netro system are both wi-fi connected smart timers that are virtually identical in function and composition and so the winterization process is the same.
To winterize your water timer, first power off the device and turn off the faucet, remove the irrigation pipe or hose from the timer, then remove the timer from the faucet. Clean any debris on the gasket if necessary. Gently shake the device to remove the water inside. Lastly, store the water timer indoors to avoid freezing temperatures that may damage the device. In addition, if the water timer will not be used for over 5 months, it is best to remove the batteries to prevent battery leakage from damaging the timer.LinkTap Pty., Ltd., Australia, Frequently Asked Questions
Please note that there is no need to unplug the flow meter connector from the main unit or to delete all watering schedules from your user account when winterizing your water timer.
All the watering schedules and configurations have been saved in the cloud server. When next spring comes, you just need to log into the app, reconnect your hose timer to the faucet, then your system is ready to go
Drip tubing and emitters are almost always safe from damage due to freezing temperatures. The tubing is buried underground and also meant to drain after each watering cycle so it is okay to leave it all in place. Some systems have a blowout valve at the far end of the tube and if so, you can leave this valve open during freezing temperatures for extra assurance.
Outdoor faucets also called hose bibbs which are connected to the main plumbing can be protected by several different methods. Scientifically speaking, running water will freeze at a lower temperature than still water and so you can let a faucet drip overnight to prevent freezing. Of course here in the desert we really don’t like to let water just run out with no specific purpose so adding insulation is preferable. Pipe insulation sold specifically for this task is available at the hardware stores but you can also use old t-shirts, towels or blankets. Exposed outdoor pipes can also be wrapped with electrified heating wrap.
Hoses should be disconnected from faucets, rolled up to be cleared of water and stored in a protected area.
Water tanks generally do not freeze solid in our mild winters although the single-digit freeze we had in 2011 put this statement to the test. It is the valves on the water tanks which are susceptible to freezing. This is an important thing to protect as a break in a valve can empty an entire tank. For the greatest protection, close any valves and disconnect any hoses then insulate your valves with old towels, blankets or even an old cooler. PVC valves and associated pvc plumbing are most susceptible to freeze so be extra vigilant in protecting those components.
We typically get our average first freeze of the season mid-November. This year we a right on time for that scheduling. In true Texas weather fashion we could have highs back into the eighties next week and some plants may want water again. It is up to you to determine whether to go back through the process of un-winterizing your outdoor water components when the heat rises again. Mid-March is the average last frost and it is the time we can assume that we are finally in the clear again as far as freezing temperatures go. The four months of “could be winter” in between are always up to individual preference and determination. It’s one of those things that keeps Terlingua living exciting.
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