What temperature should I winterize my sprinkler system?

To avoid any possibility of damage, sprinkler lines need to be drained prior to temperatures dipping below 32 degrees Fahrenheit. Failing to winterize a sprinkler system before a hard freeze (air temperature is below 0 degrees Fahrenheit) can lead to expensive and time-consuming repair costs.

What temperature will sprinkler heads freeze?

Like anything else involving water, sprinkler systems can freeze-up if the temperature drops below a certain point. You should be aware that a freeze failure may occur any time the temperature is below 32 degrees Fahrenheit.

When should I turn off my sprinkler system for the winter?

You should shut off your irrigation system just before temperatures in your region begin to dip below freezing at night. Don't shut off your irrigation system too early. Often homeowners shut their systems down as soon as the fall season arrives because they believe that their lawn requires less water.

How cold will damage sprinkler system?

Normally, this is not a problem because the main shut-off, zone valves and heads are below ground and stay relatively insulated. However, if the temperatures do dip down into the 20's, or temperatures remain below 32 degrees for an extended period of time, your irrigation system can be damaged.

Should you run sprinklers before a freeze?

It is best to turn on your system during the warmest time of the day when anticipating freezing conditions. Be sure the outside temperature is 37 degrees or above when you run your system. You ABSOLUTELY do not want to run your sprinkler system during a hard freeze as this will cause damage to your irrigation system.

When Should I Winterize My Irrigation System? | PPLM | (804) 530-2540

Can you winterize your sprinklers too soon?

That's why it's best to empty your sprinklers before a freeze and turn them off as part of your winterizing routine. However, turning off your sprinklers too soon may dry out your lawn, affecting its health at a very critical time. If your grass suffers late fall, it will have trouble rebounding in the spring.

How long does it take pipes to freeze at 32 degrees?

Pipes can freeze in as little as six to eight hours, meaning they can freeze overnight. If the outside temperature is below 32 degrees F and your pipes are unprotected, your chances for a frozen pipe increase.

Will my sprinkler system freeze at 32 degrees?

While you may be eager to get your lawn back to its pristine green state, it is important to remember that temperatures at and below 32 degrees Fahrenheit put your sprinkler system at risk of freezing.

Should you run sprinklers in winter?

Should I Turn Off My Sprinklers in Winter in California? In many cases, yes you should. As long as there is at least an inch and a half of rain per winter month, you don't need to supplement it with your sprinklers.

How do I keep my sprinkler system from freezing?

Shut off the water supply to the irrigation system. The main shut off valve for your irrigation system needs to be protected against freezing. Make sure it is wrapped with insulation (foam insulation tape and a plastic bag) to protect it from harsh winter temperatures and prevent it from freezing.

What temperature should I turn on my sprinklers?

Step 2: Turn 45-Degrees

To get the sprinkler system ready for everyday use, a homeowner must turn the two stop valves connecting to the house, and the test cocks, to a position perpendicular to the pipes (turn back from current 45-degree angle).

Should you leave sprinkler valves open in winter?

Manual valves should be left in the open position throughout winter to prevent repressurization. Some sprinkler heads have both side and bottom pipe inlets. If you use the side inlet, install a drain valve on the bottom inlet to prevent the case from freezing.

What happens if you don't winterize your sprinklers?

If you forget to winterize your sprinklers, you run the risk that water will freeze in the irrigation valves, pipes and sprinkler heads. When water freezes, it expands causing the parts of your system to burst and destroying your sprinkler system.

Can you put antifreeze in a sprinkler system?

Antifreeze is commonly used in HVAC systems, automobiles, and combustible engines, and the principle is the same in a fire sprinkler system. A solution of a water and an active antifreeze ingredient is flooded into wet pipe systems to keep the water from freezing.

How do I prepare my sprinkler system for winter?

How do I winterize my sprinkler system without a blowout?

Not all systems need to have the water blown out of them. You can winterize a sprinkler system without an air compressor if all of your irrigation lines are buried at a slight downhill slope. Simply shut off the main water supply to your system and open the drain valves at the end of each zone.

How often should you water your lawn in the winter?

Watering once or twice a month is usually enough to keep your lawn moist throughout the winter. Check in on it weekly and look for signs of stress and wilt. See if the grass bounces back after being walked on. Some stress is good for your lawn's root development, but make sure it doesn't get too stressed.

Should I water my lawn before a freeze?

It is best to water the grass the day before a freeze because the wet soil acts as insulation to the grassroots. Roots are more likely to freeze if the ground is too dry. Stop watering when the ground freezes.

Should I stop watering lawn in winter?

Gradually reduce watering until the average nighttime temperatures are in the low 30s, then stop. Water won't penetrate once the ground freezes. “Watering in colder climates can lead to disease, so it is critical to reduce how often and how long you water your lawn,” Rossi says.

What temperature do sprinkler pipes burst?

At the freezing point of 32 degrees, Fahrenheit water left in your sprinkler system can expand and burst the pipes.

When should I winterize my pipes?

When water freezes, it expands as it becomes ice. This expansion produces pressure within pipes, which causes damage. Winterizing plumbing is recommended when a house will be vacant for a long period of time and no water will be running through the pipes.

At what temperature should you turn off outside water?

Although interior pipes are generally safe at temperatures as low as 20℉ (-7℃), outdoor faucets can freeze as long as temperatures are at or below 32℉ (0℃) for at least 6 hours. This is because outside water pipes do not receive radiant heat from your home, making them more prone to freezing.

Can water freeze at 33 degrees?

Water will not freeze with the temperature air at or above 33 degrees, regardless of how far the wind chill is below freezing. Wind chill has no effect on inanimate objects, and they cannot be cooled below the ambient air temperature.

How fast should water drip to prevent pipes from freezing?

A dripping faucet wastes some water, so only pipes vulnerable to freezing (ones that run through an unheated or unprotected space) should be left with the water flowing. The drip can be very slight. A flow of one gallon per hour is enough to prevent freezing.

How much does it cost to winterize my sprinkler system?

The cost to winterize or activate a sprinkler system ranges from $53 and $121, or $87 on average. Maintenance during the irrigation season averages about $115, on top of these expenses.To keep your sprinkler system working properly, it must receive regular maintenance from a professional plumber.