Multiple drainings per flush

Discussion in 'Toilet Forum discussions' started by xterra, Jun 4, 2007.

  1. xterra

    xterra New Member

    Jun 4, 2007
    We had a toilet start leaking into the (unfinished) basement. I pulled the toilet and replaced the wax ring. While I was at it, I replaced the flap and fill valve with a "whisper quiet" unit. The leak is now fixed, but whenever we flush the toilet, the bowl empties 2, sometimes 3, time before it begins to fill.

    The toilet is a 12 year old Kohler 2 piece normal (non-pressurized) unit. The new guts are a Flushmaster complete kit from Home Depot.

    Any ideas are appreciated.
  2. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Sep 2, 2004
    Retired Systems engineer for defense industry.
    New England
    My guess is that the flapper valve is dumping more water than the thing was designed for. You probably need either an adjustable flapper valve, or the exact replacement from Kohler.
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  4. Verdeboy

    Verdeboy In the Trades

    Jun 12, 2006
    The flapper that comes with the fluidmaster kit is adjustable. Look at the directions carefully to see how to adjust it.
  5. jimbo

    jimbo Plumber

    Aug 31, 2004
    San Diego, CA
    If your Kohler is a Wellworth, the original flapper had a foam float attatched to the chain. The position of the float kept it open just the correct length of time. Your generic flapper uses a timing vent, and basically allows all or most of the water in the tank to ruu out. Wellworths are noted for doing a "triple" when this happens.
  6. xterra

    xterra New Member

    Jun 4, 2007
    Thanks all for the information. Can't tell you the specific Kohler model - they were here when we bought the house. The old flapper didn't have any type of float, but it could have been replaces at some point. I also checked the new flapper that came with the kit and checked Fluidmaster's web site, and it's not one of the adjustable kind.

    So I'll be going to Home Depot on the way home tonight to look at my options. Worst case I can put the old flapper back on until I can find one that works properly.
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