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Saturday, April 27th 2013, 5:53pm

Author: Stew24

Trench Depth?!

Hello All, I am getting ready to start trenching for my self installed irrigation system! I have read so many different things about how deep to bury the pipe I am seeking some guidance in this area. I live in central Oklahoma and from what I can find the frost depth is around 18 inches. I have read differing statements in that I need to trench to at least the frost line and that 8-12" is as deep as I need to go. Also, my main line is 1" Please someone give me a certain answer on how deep to tre...