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  1. 12-16-2024, 10:05 AM #1
    Joe Reilly's Avatar
    Joe Reilly
    Joe Reilly is offline Member
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    Default To be or not to be Smooth

    More of an observation here.

    Drainage lines need to be smooth uniform internal waterways, per IRC, which means those flexible pipes they sell in the stores should not be used...OK I get it.

    So then why are dishwasher drain lines rigid and not smooth ?

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  2. 03-23-2025, 07:11 AM #2
    John Dirks Jr's Avatar
    John Dirks Jr
    John Dirks Jr is offline Member
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    Default Re: To be or not to be Smooth

    I believe the flex drain pieces are not against the code as long as they are installed in a vertical only position.

    The drain tubing that comes with the dishwasher is designed to be flexible for installation purposes and since it's not technically part of the house plumbing piping, it's not a code violation.

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