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How deep do the trenches for a lawn sprinkler system need to be in a cold climate that experiences deep freezes?

0-6 inches deep
2%
6-12 inches deep
22%
12-18 inches deep
26%
18-24 inches deep
14%
24+ inches deep
6%
It depends on the frost line in that area
16%
Not sure
12%
Next Question
Question: How deep do the trenches for a lawn sprinkler system need to be in a cold climate that experiences deep freezes?
Top Answer (26% of 49 votes): 12-18 inches deep.

Answer: 24+ inches deep
Explanation: If you live in a region that freezes, you don't want your sprinkler system to be shallower than 2 feet.
Green Mountain Turf Sprinkler Repair
Answer: 24+ inches deep
Explanation: Freezing temperatures rarely reach below 24 inches deep, though soil composition can play a role.
All Star Clean Up
Answer: 6-12 inches deep
Explanation: In colder climates, your sprinkler lines should be buried deeper to remain below the frost line.
LawnScapes
ProMatcher
Answer: 6-12 inches deep
Explanation: Lawn sprinkler systems are winterized before the winter weather comes to town, so not to worry in colder climates...Just make sure you winterize the backflow, mainline and all lateral lines before the big freeze.
TANZ Inc
Answer: 12-18 inches deep
Explanation: The colder the deeper the pipe needs to rest.
BlueMark Water
Answer: 12-18 inches deep
Explanation: You must bury the pipes below the frost line in the soil to avoid the pipes from freezing and bursting.
Lawn Saver Irrigation
ProMatcher
Answer: 12-18 inches deep
Explanation: In a freezing climate we winterize the system before it freezes so depth to climate is irrelevant. We keep them about 12" regardless.
Nuss Property Management
Answer: 18-24 inches deep
Explanation: it depends on exactly how cold it is but for the most part after two feet in the ground you're not really getting any freezing there and that's what causes the damage to the pipes water freezes it expands and then the PVC breaks
Webster's Lawn care
Answer: Not sure
Explanation: My company sells building fire sprinkler systems, not lawn sprinkler systems.
SimplexGrinnell
ProMatcher
Answer: Not sure
Explanation: I have no experience with colder climates but would guess that 12"-19" would suffice.
Accurate Waterfalls & Irrigation
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Does a sprinker system water a lawn more efficiently than manual watering?Top answer: Always

Are permits required to install a lawn sprinkler system?Top answer: It varies by jurisdiction

What type of backflow prevention device is the most reliable for a sprinkler system?Top answer: Pressure vacuum breaker

Related Topics

Lawn Sprinkler Installation
Winterizing Lawn Sprinklers


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