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Thread: repair of 4-inch clay sewer

  1. #1

    Default repair of 4-inch clay sewer

    Im searching for the best type of coupling for joining 4-inch clay pipe to 4-inch PVC. My primary concern is root penetration. Is a Trifluralin impregnated coupling available?

  2. #2
    Plumber, Contractor, Attorney LonnythePlumber's Avatar
    Join Date
    Sep 2004
    Location
    Wichita, Kansas
    Posts
    319

    Default Herbicide

    I've not heard of a herbicide impregnated rubber coupling. You're still going to have clay that will have to be replaced anyway.

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