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    trudru33's Avatar
    trudru33 Posts: 1, Reputation: 1
    New Member
     
    #1

    Mar 7, 2007, 05:47 PM
    Adding shower/tub to slab
    I want to add a shower/tub to my 1/2 bath to make it a full bath I noticed that there is an extra 4" cast iron drain flush with the slab that would be about where the tub drain would go my question is how do I go about adding a trap the proper way with code and all
    speedball1's Avatar
    speedball1 Posts: 29,301, Reputation: 1939
    Eternal Plumber
     
    #2

    Mar 8, 2007, 07:55 AM
    If we're talking about a 4" floor drain you will have to take up thje floor drain and reduce to 2". You will then install a 2"trap and raiser 15 1/2" off the back wall and 1 1/2" off the front plate to the center of the raiser. You will also need to cut a 12 X12" tub dap-out around the trap in the cement. Good luck, Tom

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