Bath remodel...moving toilet and vanity

Discussion in 'Remodel Forum & Blog' started by lojoma, Jul 16, 2009.

  1. lojoma

    lojoma New Member

    Messages:
    34
    Location:
    Tennessee
    Hi all,

    I am trying to change the layout of my master bath. It is a 1950s house with concrete slab, but I believe the master bath is part of a 1970s addition but I'm not sure.

    I have attached a couple of sketches showing the old and new versions. The LEFT one is the OLD bath and the RIGHT one is the NEW bath.

    Basically the toilet and sink would change places and the single vanity would be a double. The bath/shower would be shower only. Please note that the current water for the shower is on the same wall as the current vanity and would still be that way after the remodel, OPPOSITE of what's shown in the diagrams.

    My question regards being able to switch the location of the toilet and sink. I know this is precious little information to go on, but is something like this possible? I figure the supply water won't be too bad as I have attic space above and there is at least cold water already at both locations. It's the drains I'm really wondering about. I realize the concrete will have to be busted out, but can the new sink drain to where the toilet once did and can the new toilet somehow drain to where the old sink did with some modifications? I'm guessing the pipe sizing is different and I bet code is for different size pipes than were probably installed at the time.

    So, any advice or direction would be helpful, as well as even a remote idea of cost for a plumber to do something like this, if I do all the demo work.

    Thanks

    Attached Files:

  2. lojoma

    lojoma New Member

    Messages:
    34
    Location:
    Tennessee
    REPOSTED in plumbing

    Sorry, I reposted this one in plumbing...after looking more carefully the posts in this section are mostly non-plumbing related.

    Thanks
  3. FloridaOrange

    FloridaOrange Plumbing Designer

    Messages:
    1,317
    Location:
    SW Florida
    You will have to upsize the former lavatory line to a 3", the line that formerly served the toilet can be bushed down to a 2" either below or above the slab.

    Venting will be interesting though and it would have to be reviewed and revised to make it compliant. Obviously you will vent the new lav location but you don't want the toilet washing past the shower unvented.
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