Venting a Basement bathroom

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by KCDave, Nov 30, 2006.

  1. KCDave

    KCDave New Member

    Messages:
    3
    Can someone explain how the venting would look for this basement stub-in?

    [​IMG]

    The above image shows the layout, the line marked “sink†is what I hoped to use for the sink drain. But, there is also another 2†line by the toilet. There is also a line above marked “future vent†that is either 1 ¼ or 1 ½â€.

    [​IMG]

    You can see from this image everything drains into and ejector pit

    [​IMG]
    The vent line is just above the line I have marked for the sink

    [​IMG]
    Shows the plumbing above the stub-ins. I have the ejector drain and vent labeled backwards on the image
  2. markts30

    markts30 Commercial Plumber

    Messages:
    630
    Location:
    Phoenix, AZ
    I suspect what you have labelled sink is the shower vent and the plumber intended to drain the lav into the WC vent (the one marked "??")...
  3. KCDave

    KCDave New Member

    Messages:
    3
    I just talked to the plumber that did the installation and thats what he said. But, he also said I could use either line ("sink" or "??") for the bathroom sink. They would both tie into the vent above. He also said the ejector pump venting was ok. Every place I read the ejector pump should have it's own vent going out the roof.
  4. prashster

    prashster New Member

    Messages:
    941
    In my town, ejector pump's allowed to loop into main vent.
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