Thread: 4" or 6"
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  #41  
Old 05-11-2014, 04:10 PM
greendoctor greendoctor is offline
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Join Date: Mar 2008
Location: Honolulu, Hawaii
Posts: 7,438
In large installs, I have seen rotors sink down because they are placed in the deep trench machine cut for the pipe. That thing about placing a rotor on a base of undisturbed soil helps to prevent sinking vs throwing the rotor in the soft backfill dug up by the trencher. Its bad when an I25 cannot clear a lawn cut at 1".
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