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Thread: Horizontal branch line fixtures

  1. #1

    Default Horizontal branch line fixtures

    We are working on a new modular home on a basement. There will be a horizontal branch line servicing the water closet, vanity, shower, & washer. All of the fixtures are individually vented. Does it matter where the water closet enters the branch line (i.e. upstream or downstream of other fixtures)?
    What about the washer?

  2. #2
    Forum Admin, Expert Plumber Terry's Avatar
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    Default

    Between the fixture and the wye fitting, there should be a vent.

    If the fixtures are vented that way, then the order makes no difference.

  3. #3
    Moderator & Master Plumber hj's Avatar
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    Default toilets

    WHERE the fixtures go is immaterial. Whether you have the proper vents on them IS important regardless of how you have them arranged.

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