Relocating washer. Cast iron DWV to valve box?

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  #1  
Old 06-06-19, 08:35 PM
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Relocating washer. Cast iron DWV to valve box?

I am relocating our washer to a brand new location. Code in this town requires cast iron. No PVC and no ABS! Have never worked with it. Was going to use 2" for everything including vent. Had a little sticker shock when I went to Home Depot and saw that a 10' length was $60! But maybe a little cheaper at a plumbing supply house.

My only real question is how to tie this into my plastic Oatey valve box w/drain? If the answer is "You don't", then what is the cleanest way to terminate this thing? I'm trying to get the washer and dryer as far back as possible.

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Old 06-06-19, 10:05 PM
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I believe you can use a transition coupling, like a Mission band-seal, if you glue a short piece of plastic pipe into the Oatey box.
 

Last edited by steve888; 06-06-19 at 11:17 PM.
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Old 06-07-19, 10:54 AM
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I'd agree with Steve. I can't imagine your inspector would have an issue with a 2" piece of PVC into the wall box.

They do sell couplers that go on the outside of PVC hubs, so it would tighten around the wall box PVC connector. That might be another solution with no additional PVC pipe.
 
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