Drain is too low for lavatory

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by Thomas Vido, May 16, 2020.

  1. Thomas Vido

    Thomas Vido New Member

    Joined:
    May 16, 2020
    Location:
    Florida
    I upgraded my bathroom vanity. The trap arm comes out of the sani tee about 6 inches lower than what is needed for my vanity.
    My question in can you raise the trap arm with 45s or 90s? Our do I have top CIT the sani tee out and raise it?
    I posted a pic with a rough drawing of what I am saying. Thank you
     

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  2. Reach4

    Reach4 Well-Known Member

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  4. gagecalman

    gagecalman Member

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  5. Terry

    Terry Administrator Staff Member

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    Aug 17, 2004
    Occupation:
    Plumber
    Location:
    Bothell, Washington
    You have to cut out the santee and raise it. The trap arm can come out with a 2% rise or 1/4" per foot.
    If you raise it with any fittings at all it no longer works.

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    Last edited: May 19, 2020
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  6. Thomas Vido

    Thomas Vido New Member

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    May 16, 2020
    Location:
    Florida
    Thank you. I woke up this morning and cut out the sani tee. I'd rather not take the chance.
    My vanity is also split with drain that are 35 in apart. Can I tee my drains to one p trap? Thanks again
     
  7. Thomas Vido

    Thomas Vido New Member

    Joined:
    May 16, 2020
    Location:
    Florida
    Thank you. I would have done that, but the p trap would interfere with the bottom of the vanity. I need the trap arm from the vent to be higher. That was a solution for some though.
     
  8. Thomas Vido

    Thomas Vido New Member

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    May 16, 2020
    Location:
    Florida
     

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  9. gagecalman

    gagecalman Member

    Joined:
    Nov 25, 2016
    Location:
    Baltimore, MD
    "My vanity is also split with drains that are 35 in apart. Can I tee my drains to one p trap? Thanks again"

    I don't think anyone saw this. You should've run two separate drains and added a vent.
     
  10. hj

    hj Moderator & Master Plumber Staff Member

    Joined:
    Aug 31, 2004
    Occupation:
    Plumber
    Location:
    Cave Creek, Arizona
    They "slipped" the part about two sinks in after the first posting. Maybe didn't want to overload us with too much information at once.
     
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