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Thread: shower drain material: ABS or cast iron?

  1. #1
    DIY Junior Member Emma3's Avatar
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    Default shower drain material: ABS or cast iron?

    Just had rough-in completed for new shower. The plumber is about to install the actual drain fitting onto the ABS drain pipe, and I need to choose between an ABS drain (with chrome plate stainless, I believe), and cast iron. The cast iron is maybe $200 more.

    This will be a custom-tiled shower and will be used regularly, so I definitely don't want to cut corners, but is the cast iron really necessary or worth the extra cost?

    Thanks!

  2. #2
    Retired Defense Industry Engineer jadnashua's Avatar
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    I'd go with the abs. Just like most things, there's good quality and marginal. You don't want the least expensive item, regardless of the material. The quality of the parts you see is important and for that part, thicker material, higher quality plating, non-rusting materials, is the big thing.
    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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    DIY Junior Member Emma3's Avatar
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    Default manufacturer for ABS drain?

    Ok, makes sense. Can you recommend a brand for good quality ABS drains? The plumber made it sound like we had two options -- the indestructible cast iron, or flimsy ABS. Unless I can compare some different options in the same material, I won't be able to make sure he's using something decent.

  4. #4
    Moderator & Master Plumber hj's Avatar
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    Default drain

    The ABS drain that glues to the pipe will be the least likely to cause any future problems.

  5. #5
    Retired Defense Industry Engineer jadnashua's Avatar
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    Sorry, don't have any ideas on brands. The showers I've done used the Kerdi system, which has it's own special drain. It must be used with the system, as it uses a surface membrane rather than a liner. I think it makes a superior shower, but a conventional one, done right can last as long. Check out www.schluter.com for the Kerdi system for reference.

    You may want to ask this question over at www.johnbridge.com. Those guys live tiling and showers so you'll get more exposure on this type of question. They probably have some recommendations in their library (liberry).
    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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