drain pipe for shower

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  #1  
Old 04-05-00, 07:34 AM
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I am remodelling a bathroom. I have pulled
out the old rather small fiberglass
shower stall and am intalling a new larger one. The problem is the location of the drain pipe which runs under the basement slab. I have busted up the slab and found that the drain pipe is cast iron.
What is the recommended method (if any) for
connecting PVC drain pipe to cast iron.
It would be very inconvienent to replace the
entire cast pipe.
 
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Old 04-05-00, 09:59 PM
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If you open the concrete up enough to expose the entire cast iron trap and the 6" of drain line down stream from it, you can cut off half of that 6" and use a neopreme coupling to install an ABS trap. As far as removing ALL of the cast iron pipe, sure, you can do it, but remember, every inch of it is beneath 4 to 6 inches of concrete, and who knows how far it may run before it exits the basement. I wouldn't suggest it unless it has a major problem.
 
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Old 04-06-00, 06:34 AM
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thanks lefty.
Does the neoprene coupling have an infinite life? It will be buried and I never want to
pick up the floor and slab again.
 
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Old 04-06-00, 11:19 PM
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You obviously don't want to embed the neoprene directly in concrete (UPC 313.2), but by completly covering the coupling with gravel, it should last as long as the cast iron it is connected to (though probably not quite as long as the ABS!)
quote:
Originally posted by jb:
thanks lefty.
Does the neoprene coupling have an infinite life? It will be buried and I never want to
pick up the floor and slab again.



 
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