proper venting of new bath sink

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  1. H

    In desperate need of advice!! Venting

    I am trying to install a double sink vanity in our master bath remodel. However, when I exposed the pipes to plan my plumbing I ran into a dilemma. How do I tie double sink plumbing into my current plumbing. The issue I have is trying to properly vent and drain the system. In the second photo...
    • hbillingsley92
    • Thread
    • bathroom drain bathroom sink double vanity plumbing codes plumbing help proper venting of new bath sink venting venting help
    • Replies: 12
    • Forum: General Plumbing Help
  2. W

    New Bath - Drain and vent

    Blue = Existing Vent, Black = Existing 3" Drain Red = New plumbing Need to add 2nd story lav sink. Can I do a wet vent from the new lav sink to the exiting lav sink on first floor? If so, do I need to, or should I remove the "dashed" line i have in image?
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