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Thread: remodelingwalkinshower

  1. #1

    Default remodelingwalkinshower

    I removed an older tiled walkin shower and plastic base pan to reveil the flooring beneath as concrete slab and a caste iron drain. The previous pan just dropped in pvc pipe into cast iron drain. And you can see where the water backed up around the drain. I would prefer to custom tile the base, but seeing as the drain pipe is 4" cast iron, what advise do you have for building a drain for a custom tile shower base?

  2. #2
    Retired Defense Industry Engineer jadnashua's Avatar
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    You need a trap and a vent for it to meet code. A shower needs a 2" drain and trap. From there, you can run it into larger pipe. You'll need to crack out some concrete and see what you have - at least to the point where you can make the proper conversion. Check out www.johnbridge.com for help on tiling your shower so it will last.
    Jim DeBruycker
    Important note - I'm not a pro
    Retired Defense Industry Engineer; Schluter 2.5-day Workshop Completed 2013, 2014

  3. #3

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    yes, the iron pipe has ptrap at wall. What can i do to switch from the iron pipe to pvc so i can make a decent drain fitting for the shower base?

  4. #4
    Retired Defense Industry Engineer jadnashua's Avatar
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    The proper place for the trap is directly under the drain. If you are using a shower base, it will usually come with a drain. You'd have to follow the directions for it. Got a brand and model? Post a picture?
    Jim DeBruycker
    Important note - I'm not a pro
    Retired Defense Industry Engineer; Schluter 2.5-day Workshop Completed 2013, 2014

  5. #5

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    no, i was planning on building a base with mortar, tile. How would i securely attach a pvc pipe/drain to the iron drain?

  6. #6
    Retired Defense Industry Engineer jadnashua's Avatar
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    There are probably multiple ways that would work...one would be to dig down, snap the CI off, build back up using a coupling with PVC. Depending on how old the whole drain is, while you have access might very well be the time to change out the p-trap.
    Jim DeBruycker
    Important note - I'm not a pro
    Retired Defense Industry Engineer; Schluter 2.5-day Workshop Completed 2013, 2014

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