Frustrating Leak from The Toilet Tank

Discussion in 'General Plumbing Help' started by OldmanMike, Jan 13, 2019.

Help Support Plumbing Forums by donating:

  1. Jan 13, 2019 #1

    OldmanMike

    OldmanMike

    OldmanMike

    New Member

    Joined:
    Jan 13, 2019
    Messages:
    3
    Likes Received:
    0
    Location:
    Pennsylvania
    OK. Looking for Help. I have moderate experience with replacing toilets and bowls and have replaced & repaired many in my house. Usually no problem. I have a toilet where there is a leak from the toilet tank into the bowl I cannot seem to fix. I replaced the entire flush valve assy (fill tube, flush valve & flapper) as a new assembly. The leak is still there. I replaced the flapper again & this time put a seal around it as I thought this is where the leak was coming from. There is still a slow leak from the tank to the bowl. I also replaced the outer flange from the tank to the bowl. Leak is still there. There is no water coming out anywhere else (leaking to the floor or out of the tank) so I know it's not that. I lose about a tank of water every 12 hours or so. I hate to think I need to swap out the whole toilet just for this but I just can't figure it out. Is it possible I don't have the tank bolted down hard enough to the bowl? I only know of one way water can get from the tank to the bowl but maybe there is something I'm missing. I would appreciate any insight anybody has.
     
  2. Jan 13, 2019 #2

    Geofd

    Geofd

    Geofd

    Professional Professional

    Joined:
    Jan 20, 2018
    Messages:
    1,277
    Likes Received:
    191
    Location:
    Boston, Massachusetts
    have you tried to dye the tank ??????
     
  3. Jan 14, 2019 #3

    frodo

    frodo

    frodo

    Just call me Macgyver Professional Supporting Member

    Joined:
    Sep 28, 2014
    Messages:
    7,400
    Likes Received:
    2,311
    Location:
    ,
    Are your Tank Bolts installed in the following order

    3 stool.jpg
     
  4. Jan 14, 2019 #4

    journeyman

    journeyman

    journeyman

    the professional

    Joined:
    Oct 4, 2012
    Messages:
    538
    Likes Received:
    165
    Location:
    san diego, california
    Is tank cracked around flush valve
     
  5. Jan 14, 2019 #5

    Diehard

    Diehard

    Diehard

    Well-Known Member

    Joined:
    Aug 19, 2017
    Messages:
    1,337
    Likes Received:
    238
    Location:
    North Reading, Mass.
    OldmanMike...When you say, "lose about a tank of water every 12 hours or so", may I assume you had shut the water off to make this observation? (Just trying to eliminate the possibility of the valve slowly leaking into the overflow tube without being detected.)

    frodo...Do you think a leak at those tank bolts could find its way into the bowl? I really don't know.
     
    jeffmattero76 likes this.
  6. Jan 14, 2019 #6

    OldmanMike

    OldmanMike

    OldmanMike

    New Member

    Joined:
    Jan 13, 2019
    Messages:
    3
    Likes Received:
    0
    Location:
    Pennsylvania
    No cracks in the tank. I checked
     
  7. Jan 14, 2019 #7

    OldmanMike

    OldmanMike

    OldmanMike

    New Member

    Joined:
    Jan 13, 2019
    Messages:
    3
    Likes Received:
    0
    Location:
    Pennsylvania
    Yep. Turned the water off after each repair. I am truly baffled by this.
     
  8. Jan 14, 2019 #8

    frodo

    frodo

    frodo

    Just call me Macgyver Professional Supporting Member

    Joined:
    Sep 28, 2014
    Messages:
    7,400
    Likes Received:
    2,311
    Location:
    ,
    hell no, that was the scotch talking
     
  9. Jan 14, 2019 #9

    frodo

    frodo

    frodo

    Just call me Macgyver Professional Supporting Member

    Joined:
    Sep 28, 2014
    Messages:
    7,400
    Likes Received:
    2,311
    Location:
    ,
    --------
     
    Last edited: Jan 15, 2019
  10. Jan 15, 2019 #10

    Geofd

    Geofd

    Geofd

    Professional Professional

    Joined:
    Jan 20, 2018
    Messages:
    1,277
    Likes Received:
    191
    Location:
    Boston, Massachusetts
    check the inside of your overflow tube I have run across a few that were cracked
     
    Mikey and jeffmattero76 like this.
  11. Jan 15, 2019 #11

    Geofd

    Geofd

    Geofd

    Professional Professional

    Joined:
    Jan 20, 2018
    Messages:
    1,277
    Likes Received:
    191
    Location:
    Boston, Massachusetts
    dye the tank if you haven't already
     

Share This Page