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Thread: Bigger washer drain - 1.5 to 2"

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    Default Bigger washer drain - 1.5 to 2"

    My washing machine presently drains into a copper 1.5" standpipe which goes though a CMU wall and tees into a vertical 1.5" copper drain (see attached picture). At the slab the copper connects to cast iron in what looks to be a lead and oakum joint. Right at the joint it actually looks like 2" copper pipe connected with a reducer to the 1.5".

    I'd like to make it all 2" so that I can add a laundry sink and eventually a kitchen sink, but first I need to figure out the easiest way to adapt the cast to 2" ABS pipe.

    I've searched the forums and found lots of good information on drilling/replacing lead and oakum joints, but I was wondering if there is an easier way: Can I just unsolder the reducer (I hope that's a reducer I'm looking at) and then use a coupler to connect 2" ABS to the copper stub?

    Assuming I can get it all changed over to 2" pipe, my plan is a 2x2x2 tee directed through the original, enlarged hole in the hollow tile wall and a 2x1.5x1.5 tee on top of that to go to the laundry sink. Is there any other way to do it so that I don't have to drill a new hole through the concrete masonry unit wall?

    All of this is in a single story, 40 year old house. Thanks for any advice or tips you might have.

    Full size pic here:
    http://i48.photobucket.com/albums/f2...mbing001-1.jpg
    Attached Images Attached Images  
    Last edited by tkeahi; 02-14-2007 at 12:52 AM. Reason: Changed picture

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