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    BHodge's Avatar
    BHodge Posts: 2, Reputation: 1
    New Member
     
    #1

    Feb 14, 2012, 02:20 PM
    Need a hand replacing toilet on concrete slab.
    Just moved in and the basement toilet sat up too high and therefore rocked so I took her out. Flange was rotted and broken so I took her out. Couldn't find any male flange to fit so I am using cast iron outside fiiting flange. Ok so I have chipped away at the slab floor until the flange is flush. Do I need to fill with cement and if so what kind? Would I also need to set flange mounting screws in the wet cement to avoid drilling into new possibly fragile concrete?
    Thanks for any help
    ballengerb1's Avatar
    ballengerb1 Posts: 27,378, Reputation: 2280
    Home Repair & Remodeling Expert
     
    #2

    Feb 14, 2012, 02:50 PM
    The flange is supposed to get secured to the closet bend, the sewage pipe. "using cast iron outside fiiting flange" which one? Something like this one Jones Stephens C40-420 - Cast Closet Flange
    BHodge's Avatar
    BHodge Posts: 2, Reputation: 1
    New Member
     
    #3

    Feb 14, 2012, 03:24 PM
    It looks like that but it has rubber and not neoprene that gets tightened down to secure to the cast iron closet pipe.
    I have had a hammer and chisel in hand for 5 hours and got down deep enough for the flange to sit flush.
    I have concrete screws but they will only go in about 1/8-1/4 inch. Will quickcrete work for a setting agent? Maybe special water resistant concrete? Maybe bettter answer than concrete at all?
    Thanks again
    massplumber2008's Avatar
    massplumber2008 Posts: 12,832, Reputation: 1212
    Senior Plumbing Expert
     
    #4

    Feb 14, 2012, 04:42 PM
    HI Bhodge

    For best results purchase some TAPCON concrete screws and drill bit... see images below.

    Drill the hole to the proper depth as instructed in the package the screws come in and then drive the screws down into the concrete... will secure this real well.

    Quickcrete will work... hydraulic cement will work even better, but not required.

    Good luck!

    Mark
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    ballengerb1's Avatar
    ballengerb1 Posts: 27,378, Reputation: 2280
    Home Repair & Remodeling Expert
     
    #5

    Feb 14, 2012, 05:06 PM
    Yep, agree with Marks fix.

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