Big offset - can't stop blowing out rings...please help

Discussion in 'Toilet Forum discussions' started by acc, Dec 1, 2009.

  1. acc

    acc New Member

    Messages:
    2
    Location:
    Chicago
    The good news is that my wife can set a Kohler Persuade in about 30 minutes. The bad news she is sick of practicing and I keep blowing out wax rings every few months.

    I'm pretty sure the source of the problem is a 2" cast iron offset flange set in a concrete floor. We are in a high rise and can't really touch the concrete.

    Does anyone have any potential solutions that don't involve changing the offset flange?
  2. SteveW

    SteveW DIY Senior Member

    Messages:
    1,053
    Location:
    Omaha, NE
    Do you plunge the toilet often? Vigorous plunging can blow out wax rings.

    I wouldn't think an offset flange by itself would lead to wax ring failure, but let's see what the pros say.
  3. Gary Swart

    Gary Swart In the Trades

    Messages:
    7,396
    Location:
    Yakima WA
    If you will do a search on Kohler Persuades and find the thread started by Nickinfinity, you may find the answer to you question from a number of folks. Briefly, it's a lousy toilet. You will bless the day you install a Toto...any Toto.
    Last edited: Dec 1, 2009
  4. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Messages:
    22,319
    Location:
    New England
    The shape of the offset flange may require you to make one by cutting a wax ring and adding some additional length to it to from another to make it around the flange edges...depends on the model. Plus, if it is not on top of the finished floor, you may need to do this with a jumbo (thick) version.

    If I was going to replace the toilet, I'd consider one of the Totos that use the unifit adapter, or maybe the Aquia that allows you to install the adapter to the flange, then set the toilet down on the adapter. It would be easier to ensure you got a good seal because you could feel and see what you're doing, rather than trying to balance 100# toilet hovering over the flange trying to get it aligned without dislodging things.
  5. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    27,255
    Location:
    Cave Creek, Arizona
    rings

    I assume this is an oval cast iron flange with a "ledge" about 1 1/2" below the floor. If so, then your only option is to install a conventional flange and buy a toilet which will fit the new mounting dimension, unless it becomes too far back to fit any conventional toilet.
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