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

    Mar 10, 2007, 02:36 PM
    Floating concrete in our new bathroom
    I need to float the floor of our new bathroom and there is a 4'' pipe sticking out about 7' for the toilet and I don't know if I am to float the concrete right around it or leave space around it.
    nmwirez's Avatar
    nmwirez Posts: 453, Reputation: 20
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    #2

    Mar 10, 2007, 02:57 PM
    Quote Originally Posted by moliiloilo
    i need to float the floor of our new bathroom and there is a 4'' pipe sticking out about 7' for the toilet and i don't know if i am to float the concrete right around it or leave space around it.
    That 4 inch diameter pipe is a vent stack most likely. If there is no closet flange visible then that might be the hookup to the toilet so find out what that pipe is for. Usually a vent waste stack combination is only 2 1/2 inch pipe to the roof. (Four inches is not) If you are pouring the slab today I would frame around that pipe and fill later. If that pipe is located where the outside or inside wall frame is, then it is a stack for the second floor waste drain most likely. If no second floor then see choices above. Nm:)
    speedball1's Avatar
    speedball1 Posts: 29,301, Reputation: 1939
    Eternal Plumber
    		  
    #3

    Mar 10, 2007, 04:08 PM
    If the 4" pipe's about a foot off the wall it's a safe bet it's a toilet stub-up. If there is no closet wrapper around the pipe,( tap around the pipe to see if it's solid) then cement around it and install a inside closet flange. Good luck, Tom
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