Toto drake fill valve issue

Discussion in 'Toilet Forum discussions' started by chopper, May 31, 2008.

  1. chopper

    chopper New Member

    May 31, 2008
    when the toilet is flushed it hesitates for several seconds befor filling. It seems to be getting worse as far as how long it hesitates. There do not seem to be any moving parts of the fill valve that could be sticking. It is a Toto gmax part. Any ideas? Thanks. Rick
  2. Terry

    Terry Administrator Staff Member

    Aug 17, 2004
    Bothell, Washington

    It may need a replacement cap made by Korky. You can find them next to the QuietFill Valve by Korky in the plumbing Isle of Lowes.
    Last edited: Nov 1, 2008
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  4. SamC

    SamC Member

    Apr 12, 2007
    I had the exact same symptoms. The replacement cap Terry mentioned solved the problem. I talked to Korky's customer service. They walked me through the troubleshooting procedure, and since the toilet was less than five years old, sent me a free replacement cap.

    OLDMUSIC New Member

    Jun 23, 2008
    Gmax malfunction

    Gmax on Drake is causing a water hammer like noise as it fills the tank. Running the cold water in the sink stops the noise. Seems like there may be dirt in the GMAX. Any instruction on how to take it apart and clean out the GMAX?
  6. Redwood

    Redwood Master Plumber

    Dec 15, 2007
    Service Plumber
    The cap just unsnaps.

    If it is a jackhammer type noise it may be a loose washer on the angle stop valve coming out of the wall to the toilet.

    Last edited by a moderator: Jun 23, 2008

    OLDMUSIC New Member

    Jun 23, 2008
    Gmax malfunction

    I closed the valve and then re-opened it. The noise is gone. Thank you
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