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Thread: Slow to fill Kohler 1.6 gal

  1. #1
    DIY Junior Member kirkemon's Avatar
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    Default Slow to fill Kohler 1.6 gal

    After flushing my Kohler is very slow to refill. Water just trickles. When I turn off the supply valve on the line to the toilet, then slowly open it, the water refills normal.
    We have hard water, Could there be something clogged?
    Thanks

  2. #2
    Forum Admin, Expert Plumber Terry's Avatar
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    If you have a Watts Floodsafe water supply, remove it and replace with a normal supply line.

    Last edited by Terry; 05-21-2011 at 10:22 AM.

  3. #3
    DIYer, not in the trades LLigetfa's Avatar
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    Ja, it sounds like it could be a FloodSafe kicking in. That said, there were many rentals I lived in where I would deliberately reduce the fill rate on the toilet by partially closing the shutoff cock to prevent a toilet flush from scalding someone in the shower.

    Before I replaced both of my 12 year old toilets, I had to disassemble the fill valves on them and clean out the mineral buildup as they were taking longer and longer to refill.

  4. #4
    In the Trades Gary Swart's Avatar
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    If you do not have the infamous Watts FloodSafe, then I would look at the fill valve. You mentioned that you have hard water, so it could be the fill valve has a build up of crud. Depending on the particular valve in the toilet, it might be easier to just replace the valve instead of trying to clean it. But, some Kohler valves are not available in stores and are very expensive from Kohler (sometimes even they don't have them anymore)

  5. #5
    DIY Junior Member kirkemon's Avatar
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    I replaced the supply - no difference.
    As I mentioned after I turn off the incoming valve then turn back on, it refills normal.
    Maybe I need to replace the whole mechanism?
    Thanks for any help.

  6. #6
    Jack of all trades DonL's Avatar
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    Quote Originally Posted by Terry View Post
    If you have a Watts Floodsafe water supply, remove it and replace with a normal supply line.

    That looks like something that should be connected to the back of a TV or Satellite receiver.

    No wonder they don't work, a "F" connector is made for RF, Not water.

    kirkemon , You said "Maybe I need to replace the whole mechanism?" , I say yes. That would be best.

    You may be able to clean them out, but new ones would be better.

    Crud may be settling when you turn the supply off, and also removes pressure from the fill valve,
    Causing it to work for a short time.

    Buy a good one, It is worth the money.

    Have a great day.

    DonL

    P.S. This looks like a good one. > http://www.terrylove.com/forums/show...let-fill-valve
    Last edited by DonL; 05-22-2011 at 12:45 PM. Reason: P.S.
    Theory only works perfect in a vacuum.

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