Replace tub with shower

Discussion in 'Shower & Bathtub Forum & Blog' started by marnab, Mar 31, 2006.

  1. marnab

    marnab New Member

    Joined:
    Mar 31, 2006
    We are going to remove a bathtub and replace it with a Swanstone retrofit shower, which is the same size as the tub. They come with the drain on the right or left, to fit the plumbing of the tub you are taking out. My question is, do you have to do any additional plumbing? I know the tub has an overflow drain. Does that have to be removed or capped or anything to install the shower?

    Any help will be appreciated.
     
  2. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Joined:
    Sep 2, 2004
    Occupation:
    Retired Systems engineer for defense industry.
    Location:
    New England
    The overflow shouldn't be a problem - it comes off with the drain to the tub. The biggest problem may be the size of the drain. Code requires a shower drain to be 2"; a tub is normally 1.5". Now, your pipes may be 2" with a reducer to get to the tub fitting, but if it is 1.5" to the stack, it won't meet code, and you could have a big problem with the inspector and with performance. A tub has the large depth to keep water from backing up and spilling out onto the floor. A shower typically does not. So a restriction or clog can get really messy quick. Note, some companies sell those things with 1.5" drains, but that does not mean they are legal to install.

    You'll probably want the shower controls higher than the tub controls, but that should be fairly easy and straightforward. Note, again, though, that the code requires the new valve to be a pressure balanced or thermostatic/pressure balanced valve to prevent inadvertent scalding.
     
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