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    T. Ores's Avatar
    T. Ores Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Jul 29, 2011, 11:11 PM
    Can Black sewer pipe be tapped and threaded for furnace drain connection.
    Would like to tap and thread black sewer pipe for a half inch drain to run to. I have the height for down flow and drain tube would be gone from running from across floor to floor drain now Thanks T. Ores
    massplumber2008's Avatar
    massplumber2008 Posts: 12,832, Reputation: 1212
    Senior Plumbing Expert
    		  
    #2

    Jul 30, 2011, 04:35 AM

    Hi T. Ores

    According to plumbing code, NO, you cannot drill/tap into cast iron as you want to do. It's not that it hasn't been done... you can definitely drill and tap cast iron, but first, do you have a washing machine drain nearby? If so,you can run the condensate line into the washing machine standpipe.

    Mark
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