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    MWSwift's Avatar
    MWSwift Posts: 1, Reputation: 1
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    #1

    Dec 18, 2007, 03:11 PM
    Replacing toilet flange when pipe 2 1/4" below floor
    I've got a 4" cast iron waste line with a slab floor. The pipe is 2 1/4" below the floor surface. The replacement flanges I have found are only 3" long. Is this 3/4" enough for a good seal? Does anyone know if there are longer replacement flanges out there? Thanks
    doug238's Avatar
    doug238 Posts: 1,560, Reputation: 62
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    #2

    Dec 25, 2007, 06:10 AM
    Try the one with three allen screws in the top. Screw it to the floor also.
    speedball1's Avatar
    speedball1 Posts: 29,301, Reputation: 1939
    Eternal Plumber
    		  
    #3

    Dec 25, 2007, 07:40 AM
    Quote Originally Posted by MWSwift
    I've got a 4" cast iron waste line with a slab floor. The pipe is 2 1/4" below the floor surface. The replacement flanges I have found are only 3" long. Is this 3/4" enough for a good seal? Does anyone know if there are longer replacement flanges out there? Thanks
    I would like to see a little more depth to work with but I can yearn, pour and caulk a lead and oakum joint in 3/4" depth. They do make a 4" deep 4" cast iron flange but you have tom search for them. Would you want me to look?
    Regards, Tom
    ballengerb1's Avatar
    ballengerb1 Posts: 27,378, Reputation: 2280
    Home Repair & Remodeling Expert
    		  
    #4

    Dec 25, 2007, 10:36 AM
    Doug, are you describing the Oatey Twist-N-Set, it has 3 screws that expand a neopreme collar.
    doug238's Avatar
    doug238 Posts: 1,560, Reputation: 62
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    #5

    Dec 25, 2007, 08:29 PM
    I am describing the compression seal that has 3 allen screws on the top of the flange.
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