Replacement for toto gmax fill

Discussion in 'Toilet Forum discussions' started by Realt0r, Aug 24, 2010.

  1. Realt0r

    Realt0r New Member

    Messages:
    1
    Location:
    Hamilton Ontario
    I have a toto one piece 6lpf toilet that has a korky fill valve that isn't working properly. I ordered a new part and they sent me the tsu18a which is supposedly the replacement. I installed it and cannot get the water level to stay below the overflow pipe. I have adjusted it down as low as it can go but it still doesn't work. Is there any other adjustment except for the screw?
  2. Terry

    Terry Administrator Staff Member

    Messages:
    15,005
    Location:
    Bothell, Washington
    Last edited: Nov 7, 2013
  3. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Messages:
    22,015
    Location:
    New England
    Have you checked your water pressure? If it is exceptionally high, the valve may have trouble turning off. Anything over 80# should have a regulator on it. If you have one, it may be shot and need rebuild or replacement.
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