10-05-2009, 08:11 PM
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Deity
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Join Date: Apr 2004
Location: Youngstown, Ohio USA.
Posts: 2,257
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Thanked 14 Times in 14 Posts
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While there is no 2-1/2" PVC DWV pipe, it should be mentioned here that the code standard for a washing machine standpipe is a 2" trap & drain, however code will allow us to increase the size of a trap or drain by one nominal trade size, which means you could legally install a 3" standpipe, trap and drain line.
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