Bathroom waste/vent piping [PICTURE]

Discussion in 'Plumbing Forum, Professional & DIY Advice, Tips & ' started by tbdub, May 27, 2010.

  1. tbdub

    tbdub New Member

    Messages:
    10
    Location:
    Southern IL
    I am remodeling my bathroom. Is this an acceptable way to do the waste/vent?

    [​IMG]
  2. Terry

    Terry Administrator Staff Member

    Messages:
    14,794
    Location:
    Bothell, Washington
    Last edited: May 28, 2010
  3. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    26,285
    Location:
    Cave Creek, Arizona
    It's a good thing people do not try to be their own doctors or lawyers, or those professions would be in a world of hurt. But EVERYONE wants to be a plumber, because all you have to do is "put a few pieces of pipe and fittings together and the job is done". Your drawing does NOT vent the most important fixtures, the ones that really need them.
  4. tbdub

    tbdub New Member

    Messages:
    10
    Location:
    Southern IL
    How about this?
    [​IMG]
    Last edited: May 28, 2010
  5. nukeman

    nukeman Nuclear Engineer

    Messages:
    709
    Location:
    VA
    Lav is still not vented. You could normally connect the lav with a santee and bring a separate 1.5" vent off the top to vent it. You might also be able to arrange things and "wet vent" through the lav and have a single vent to vent the entire bathroom group. You have to see what plumbing code you are under and what is allowed. For instance, some codes require the vent for a toilet to be within a certain distance and others allow an unlimited distance to the vent for a toilet. There are also requirements on how far the vents for the other fixtures and be from their vents and these distances change depending on what code you are under.

    I also strongly recommend getting a permit and having this inspected. This a good 2nd check to make sure you have things correct and legal. Many people try to bypass inspections/permits to save $$, but that is really a bad idea in my opinion. It is worth a few bucks to make sure it is correct and legal.
  6. tbdub

    tbdub New Member

    Messages:
    10
    Location:
    Southern IL
    sorry nukeman, i think i changed my picture while you were replying. Is the picture above your reply correct now? The lav and shower are both vented and the WC is wet vented through the 3" upstream to the 2" dry vent. Correct?
  7. Terry

    Terry Administrator Staff Member

    Messages:
    14,794
    Location:
    Bothell, Washington
    Bring in the shower on the other side of the toilet with a wye fitting. A proper vent is downstream, not upstream.
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