Checking my plumbing - single sink to double sink

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by awake, Aug 8, 2014.

  1. awake

    awake New Member

    Messages:
    13
    After some helpful advice here, I have completed my rough plumbing to convert a single-sink vanity to a double-sink vanity. Here is the before:

    [​IMG]

    And here is the after:

    [​IMG]

    Question: When I was putting in the transition fittings to go from the ABS to the PVC, I found that the upper (vent) piece would move a bit up and down. That was very helpful in getting everything into place, but it made me nervous about what is happening on the roof -- do I need to go up there and check to be sure a vent cap has not gotten pushed out of position?

    Does anyone see anything else I need to fix before closing this back up?
    Terry likes this.
  2. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    27,272
    Location:
    Cave Creek, Arizona
    The pipe slid through the opening, and usually there is nothing to worry about, since it apparently has not leaked previously.
  3. awake

    awake New Member

    Messages:
    13
    Thanks!
  4. Smooky

    Smooky Member

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    654
    Location:
    NC
  5. Reach4

    Reach4 Well-Known Member

    Messages:
    2,819
    Location:
    IL
    I think he was referring to something to support the vertical weight from the pipe.
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