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standard rough-in for clawfoot tubs

scorch | Posted in General Discussion on May 22, 2009 07:58am

I’m building a basement with a guest room and bathroom, and am planning to refurbish an old clawfoot tub for the 70″ space that the architect has alloted for a tub. It’s a finished concrete floor so I need to get the waste rough-in right. I haven’t bought the tub and probably won’t until just before the final. Is there a standard dimension for the trap raiser for old clawfoot tubs?

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  1. BillBrennen | May 22, 2009 09:22am | #1

    No, they vary. You need to buy the tub now so you can measure it.

    Bill

  2. CookG | May 22, 2009 12:45pm | #2

    Buy the tub - Position the tub where you want it plumb down the outside of the back face and mark the drain.Buy the faucet hardware and temporarily install and mark the water inlets

    These tubs a re tricky because all the plumbing is external to the tub so it has to be right - I did one and I am about to do another. Also I was putting a 5' tub into a 5'4" hole.I f you have more space then it might be a little easier but it always best to dry fit rather than guess

  3. User avater
    McDesign | May 22, 2009 01:13pm | #3

    This is a great place -I'm sure they have the answer. 

    http://www.deabath.com/index.html

    The ones I've done, the hole through the floor is about centered between the overflow and the end of the edge roll at the head of the tub (looking from above).  The supplies are 8" OC, about 2" further in the direction of the head of the tub - around the edge of the head edge roll, perhaps just outside it.

    I'll post a pic of one of ours in a minute - fighting with the camera now!

     

    Forrest

  4. User avater
    McDesign | May 22, 2009 01:23pm | #4

    Here we are - Note the tube to the overflow is often not vertical - it depends on the angle of the tub and the "wedge" of the supplied gasket.  My risers should be a bit further to the left where they exit the floor for perfect verticality.

    Definitely get the tub and supply/drain set for the safest bet.

    (You WILL need to put nail polish on the toenails for optimum coolness)

    View Image

    Forrest



    Edited 5/22/2009 6:24 am ET by McDesign

    1. Jamwats | May 23, 2009 12:32am | #5

      Sorry for the hijack, but Forrest's picture reminded me of a problem I'm having with my clawfoot tub (which I definitely needed on hand to locate the drain location!).

      How do you keep the tub from sliding around?  I know it's heavy, but it slid around pretty easily on my ipe floors before I had it hooked up to the drain.  I can't say I like the idea of only that drain keeping it in one place.  Are there some sort of floor anchors that hide behing the feet?

      Jamie

      1. fingersandtoes | May 23, 2009 05:45am | #6

        Usually there is a sort of hollow behind the feet. A small blob of clear caulking on all four will keep the tub still.

    2. User avater
      JeffBuck | May 23, 2009 05:53am | #7

      there are drains specific for claw foot's that come down off the straight back at the right angle. I've had my plumber set a couple of them and have never had to angle the drain like that.

      That's gotta be the wrong overflow.

      I could never get that past a paying customer.

      Jeff    Buck Construction

       Artistry In Carpentry

           Pittsburgh Pa

      1. User avater
        McDesign | May 23, 2009 06:07am | #8

        That was our first one - ordered from Sears for that specific Kohler tub - they actually still cross-listed it in 1992, back from 1917!

        Forrest

  5. jej | May 23, 2009 05:19pm | #9

    couldnt you rough it in then leave a open void , get the tub , hook up tub , finish floor were opening is

    1. scorch | May 23, 2009 05:33pm | #10

      the problem with that solution is that this will be a finished concrete slab floor, acid stained etc. If the slab were just a sub-floor that's exactly what I'd do, but since it would look ugly to leave a void and fill it later I am avoiding that approach.

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