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New-to-me 3" copper waste line fittings

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  • #16
    Re: New-to-me 3" copper waste line fittings

    It may have been some goofy interpertation of code. In Grand Rapids Mi. for a very short time we thought we had to have a 3 inch trap on all residential laundries. I'm not sure how that got started but I'm glad it was wrong.

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