Kohler Persuade Flush Problem (Brand new toilet)

Discussion in 'Toilet Forum discussions' started by txsam, Dec 4, 2011.

  1. txsam

    txsam New Member

    Dec 4, 2011
    Just replaced 3 working toilets as part of a remodel. All 3 are Kohler Persuade Dual Flush. Two are working fine but the 3rd one will not empty fully during flush before refilling. It goes through the normal flush routine and and a moment before the water is about to empty from the tank it starts refilling (during #1 flush). #2 Flush works correctly about 60% of the time. Kohler support immediately offered a refund / replace but this is holding up my remodel and I do not want to wait a week or two for another. Plumber tried the following:

    1. Snaked the drain (3") and ensured trapway and vents are clear.
    2. Replaced wax ring with one without a collar
    3. Tried various settings on the canister valve
    4. This does have an offset flange but so does another toilet which works fine.
    5. Filling the bowl with bucket of water flushes down normally.
    6. Swapping canister flush valves with working toilet, same problem (working toilet still works fine with this canister valve).

    Running out of options and would really appreciate any advice you can give.

    Last edited by a moderator: Feb 22, 2015
  2. Terry

    Terry Administrator Staff Member

    Aug 17, 2004
    Bothell, Washington
    Sounds like something lodged in the trapway of the bowl. A closet auger may clear that.
    Sometimes during construction, people use the toilet as a waste basket. Not good. :)
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  4. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Sep 2, 2004
    Retired Systems engineer for defense industry.
    New England
    Probably what Terry said, but, it still could be a defect inside of the toilet.
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