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    matt01's Avatar
    matt01 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    May 24, 2010, 06:51 AM
    How do I adapt 1 1/2
    I want to attach some 2" plastic pipe to a 11/2" metal drain pipe
    Milo Dolezal's Avatar
    Milo Dolezal Posts: 7,192, Reputation: 523
    Plumbing Expert
    		  
    #2

    May 24, 2010, 07:47 AM

    Hi Matt01,

    You should not connect larger pipe into smaller pipe. It should go the other way around.

    In any case, you can purchase Fernco / ProFlex coupling to connect those two. See the pic. One end of this coupling fits 2" plastic pipe and the other will fit 1 1/2" metal pipe.

    Moreover, there are few "metal" pipes. Each has different O.D. ( cast iron, galvanized, copper, black pipe etc. ). You should know what "metal" pipe you are working with and buy the coupling accordingly. Same goes for "plastic" ( ABS, PVC, tubular ABS etc ).

    Some Home Depots carry these couplings.
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