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Thread: Problem - Closet Flange to Lead Bend

  1. #1
    DIY Junior Member madhavok's Avatar
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    Default Problem - Closet Flange to Lead Bend

    Hello all,

    I just found this site and seems like lots of useful info. I'm currently renovating a 1955 bathroom and yesterday hit a problem regarding the soil piping for the toilet.

    It looks like I have lead piping coming up through the concrete slab of the house. I assume the lead goes to a cast iron hub but can't see it as it is either imbedded in the concrete or under it. The lead pipe is currently flared on to a brass closet flange. What I need to do is to install an offset closet flange as I need to move the toilet 2". Is there anyway I can remove the existing closet flange and install a new one with an offset?

    Also I'm not sure this help me but the subfloor is actually on 2x4 sleepers resting on the concrete slab so I have 4 or 5 inches of pipe sticking out with the existing flange.

    Thannk you!

  2. #2
    Forum Admin, Expert Plumber Terry's Avatar
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    You can't install an offset flange with lead.
    However, if the bowl needs to be shifted either closer to the wall or away from the wall, you can use a Unifit adapter that comes in 2" increments.

    http://www.terrylove.com/wc/unifit.htm

  3. #3
    DIY Junior Member madhavok's Avatar
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    Unfortunetly for me, I have to offset 2" to the side because to the old tub was a funny shape and size.

    So something like this wouldn't help me?
    http://www.plumbsource.net/product/4...campaign=49421

    Also could there be anyway to transition from the lead in the slab to pvc? Like I mentioned before I have at least 5" of pipe sticking out, from the slab to finished floor.

    Otherwise I'm looking at jack hammering slab, removing lead, donut in the cast iron hub to pvc and repour concrete............

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    Forum Admin, Expert Plumber Terry's Avatar
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    Let's see what hj says. He knows more about lead then I do.
    You might look at the Caroma 270 bowl too. That has a built in 2" offset that can go sidewise.

    http://www.caromausa.com/database/fi...ech_manual.pdf

    With a 4" flange, you can offset 1-3/8""
    The horn of most bowls is 2-5/8", and you can push the bowl over toward one side.

    With a 3" drain, you can move it 3/8".
    Last edited by Terry; 06-21-2012 at 09:17 AM.

  5. #5
    Moderator & Master Plumber hj's Avatar
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    Lead is a pliable material so if you break the concrete to the side where you need the bend, AND loosen the fill dirt around it under the concrete, back to the cast iron hub, you will be able to shift the bend sideways without doing anything to it.
    Licensed residential and commercial plumber

  6. #6
    DIY Junior Member madhavok's Avatar
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    HJ, good point. At that point should I just change it out to PVC? How much life can be expected from the lead and it's seal in the cast iron?

    I know its worked for the last 57 years, I just don't want to put a new bathroom in now and fine I have a bigger problem a few years down the road.

  7. #7
    Moderator & Master Plumber hj's Avatar
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    No way to tell. It could go bad tomorrow, or it could last for another 50 years. One thing to realize with PVC, ABS, or cast iron is that a "small" movement can be more difficult to do than a large one.
    Licensed residential and commercial plumber

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