Change Vanity Plumbing:

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

  1. oldberkeley

    oldberkeley New Member

    Messages:
    45
    Location:
    Columbus, OH
    Replacing old vanity, need to move the plumbing about 18" to the left (blue tape.)

    I'm OK with the hot & cold supply, seems to be fairly straightforward. Not sure what to do about the drain?????

    TIA.

    Attached Files:

  2. Terry

    Terry Administrator Staff Member

    Messages:
    14,808
    Location:
    Bothell, Washington
    Cut the tee out, and point the new tee toward the blue tape.
    Then point it out the wall with a Medium 90

    If the pipe is 1.5" it should be fairly easy.
    If it's 1.25", it will be harder to find pipe and fittings.

    If it's over a crawl, you can find a 1.5" pipe or larger to connect to.

    [​IMG]
    Last edited: Jun 2, 2010
  3. export!

    export! DIY Member

    Messages:
    90
    Location:
    Ontario, Canada
    Is the drain exposed below the floor?
  4. oldberkeley

    oldberkeley New Member

    Messages:
    45
    Location:
    Columbus, OH
    Terry-

    Thanks for your prompt answer, as usual. Yes, it's 1.5".

    Followed you great up to "cut the tee out"!:)

    1. What kind of new tee can I use for the replacement?

    2. What kind of pipe will I use for the run over?

    Export-

    Yes, fairly spacious and easy to work in crawl under the bathroom.
  5. jc60618

    jc60618 DIY Junior Member

    Messages:
    88
    Location:
    Chicago
    The company that I work for still uses this galvanized pipe set up. The vent bar and stack fitting with the shower arm already comes pre-fabed from the shop. Before cutting the tee out try to see if you can spin the tee. Figure out the size of the branch and buy a 2 feet piece of gal pipe. Insert the pipe into the branch get it snug and then turn it clockwise to the desired position. I always encouter this situation when working on rehabs and it never fails.
  6. oldberkeley

    oldberkeley New Member

    Messages:
    45
    Location:
    Columbus, OH
    That things been there since 1958: it ain't spinnin'! :D
  7. jc60618

    jc60618 DIY Junior Member

    Messages:
    88
    Location:
    Chicago
    What are you using to spin the tee?
  8. cacher_chick

    cacher_chick Test, Don't Guess!

    Messages:
    3,239
    Location:
    Land of Cheese
    I'm with Terry- cut the tee and a few inches of pipe top and bottom. Transition the galvanized to new PVC pipe and sani-tee with shielded no-hub couplings. Run new 1.5" PVC properly pitched and turned out to the new stub-out then finish with a trap adapter.
  9. oldberkeley

    oldberkeley New Member

    Messages:
    45
    Location:
    Columbus, OH
    Couple more questions:

    1. When I cut out the old cast iron tee from the long vertical run of galvanized drain pipe and replace it with a PVC tee and two no-hub couplings, is there some additional support needed? What?

    2. When I run the new horizontal length of PVC and turn it out with a 90 degree fitting, how is that fitting supported behind the wall?

    TIA.
  10. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    26,309
    Location:
    Cave Creek, Arizona
    Turn the tee and screw a piece of galvanized, or PVC/ABS with a threaded adapter into it. Regardless of how long it has been installed, it will turn. Either use a large pipe wrench, or a piece of pipe screwed into the opening. Drill a hole in the stud and that will support the pipe.
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