Replies

1. 
   Robert_Hedlund | Mar 15, 2001 10:32am | #1

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   Hey Steve, have had to deal with this before. You'll likely need to break up the slab enough to work on cutting the old --trap out and installing the new one moved to the new rough-in specs.Haven't seen a book that really shows this, but I highly recommend Peter Hemp's book: Plumbing a House (TauntonPress). I just about have our local library's copy worn out even though I've done lots of remodel plumbing this book comes in very handy. Good sketches and invaluable tips in the text, you do need to tease some of those tips out by careful reading.
   You may need to make a cut on a section of pipe and then use a high quality no-hub fitting (worthy of burying and concreting over) to make your new ABS connection. Obviously, only blow out enough concrete to get the job done! Good luck!
   Bob

2. 
   Steve_Byars | Mar 15, 2001 10:34am | #2

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   The rough-in on my 1958 bathtub is 15 1/2" off the wall to center of drain and 2" off the end. The new tub that I am considering requires
   14 1/4" and 1" rough-in dimensions. The bathroom is slab on grade and there is a block out in the slab for the tub drain assembly but there is not enough room to work on the pipe fittings. All of the fittings are rusted cast iron. What is my best bet for changing the rough in? Also, any recommendations for books that address this type of issue for all trades? Thanks, Steve