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

    Jul 26, 2008, 05:03 PM
    Adding a shower drain
    I am in the process of adding a shower drain in my basement bath. My plan is to put a "T" in the cast iron line that runs from the floor drain to the main stack. My question is: Is it permissible to use a rubber "quick tee" to accomplish this or should I use a pvc tee with sheilded couplings at each end?
    Milo Dolezal's Avatar
    Milo Dolezal Posts: 7,192, Reputation: 523
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    #2

    Jul 26, 2008, 05:51 PM
    I wouldn't recommend using rubber T. Rubber T is a weak point in your plumbing system. Also, if you ever have to run a snake through that pipe than you may easily puncture it as tip of the snake will be trying to make the turn. Glue-in rigid SanT and use shielded coupling to connect the other end.
    speedball1's Avatar
    speedball1 Posts: 29,301, Reputation: 1939
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    #3

    Jul 27, 2008, 06:10 AM
    I'm with Milo on the "rubber tee". However we don't install sanitary tees in a horizontal position underground and I'm surprised , that under UPC, Milo would recommend using one that way. Come off the floor drain line with a wye or a combination wye and eighth band. BUT WAIT!!
    Nobody's even mentioned the vent that you are required to install. How are you planing to vent your shower? Regards, Tom
    Milo Dolezal's Avatar
    Milo Dolezal Posts: 7,192, Reputation: 523
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    #4

    Jul 27, 2008, 07:32 AM
    Yes, Tom, in our book it is like this: transition from Horizontal to Vertical is via SanT. Transition from Vertical to Horizontal is by Comby fitting. Using Y and 45 is used only in horizontal to horizontal transitions.
    speedball1's Avatar
    speedball1 Posts: 29,301, Reputation: 1939
    Eternal Plumber
    		  
    #5

    Jul 27, 2008, 01:10 PM
    Quote Originally Posted by Milo Dolezal
    Yes, Tom, in our book it is like this: transition from Horizontal to Vertical is via SanT. Transition from Vertical to Horizontal is by Comby fitting. Using Y and 45 is used only in horizontal to horizontal transitions.
    I'm confused Milo, I'll go along with a san tee on its back
    transition from Horizontal to Vertical is via SanT
    . But
    Transition from Vertical to Horizontal is by Comby fitting. Using Y and 45 is used only in horizontal to horizontal transitions.
    Didn't you mean a "combi" fitting?
    And isn't a combination wye and eighth bend a "combi fitting"?
    Transition from Vertical to Horizontal is by Comby fitting.
    are you saying that you guys don't use a sanitary tee to pick up a 2nd. Floor bathroom branch from a stack vent? You're forced to use a combination? Perhaps I just misunderstood you. Explain what a "comby fitting" is. I'm willing to learn how the other half lives. Regards, tom
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