Can't find the leak source

Discussion in 'Shower & bathtub Forum & Blog' started by Rzrbkr67, Nov 3, 2008.

  1. Rzrbkr67

    Rzrbkr67 New Member

    Messages:
    2
    I have a real puzzler - my cast iron bathtub (36 years old) has a small leak that I can not find the source of. I have access to the bottom of the tub around the drain and can see up to the spout/shower riser area. There is a small amount of water leaking through the tub bottom approx. 3.5 in to the side of the drain. I have verified that the water is not running from another point and accumulating at this spot. I have also verified that there is no visible crack or hole in the porcelain of the tub at that spot (or another other spot for that matter). The leak only shows up when someone is showering - any suggestions?
  2. Southern Man

    Southern Man DIY Hillbilly

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    A lean under the tailpiece?
  3. hj

    hj Moderator & Master Plumber Staff Member

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    leak

    You are misdiagnosing it. The leak is somewhere above the bottom of the tub and is then running to the spot you see. It could be anywhere in the tile or at the tub's overflow gasket. A plumber with a Ridgid SeeSnake might be able to pinpoint the location.
  4. Rzrbkr67

    Rzrbkr67 New Member

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    No, I have isolated the spot so that nothing could "run down" onto it, with a plumbers putty "dam". The water is coming through the cast iron.
  5. Southern Man

    Southern Man DIY Hillbilly

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    Cast iron can be porous or have voids. You have to find out where the break in the interior coating is. Or it could be under the tailpiece as I've suggested earlier.
  6. Redwood

    Redwood Master Plumber

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    But when it is covered with enamel it is impervious.
    There would be a visible defect in the enamel...
  7. Southern Man

    Southern Man DIY Hillbilly

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    The enamel would be the interior coating, genius. :)
  8. Redwood

    Redwood Master Plumber

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    No chit Sherlock!
    And the water gets from the inside to the outside by teleporting?
    :rolleyes:
  9. Southern Man

    Southern Man DIY Hillbilly

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    No, through a break in the interior coating as I suggested. [​IMG]
  10. Redwood

    Redwood Master Plumber

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    Hard stretch to run over 3 1/2 " from your leaking drain...
    I agree with HJ the source is mis diagnosed.
  11. Southern Man

    Southern Man DIY Hillbilly

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    "Or" under the leaking drain. [​IMG] Keep grasping, please.
  12. Redwood

    Redwood Master Plumber

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    I guess the poster will just have to decide where it is...
    And who they should believe....

    The Plumber
    [​IMG]

    Or,

    The Engineer
    [​IMG]
  13. Southern Man

    Southern Man DIY Hillbilly

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    Let's hope that he understands that "enamel" is specific term for "interior coating", and that he doesn't take offense at someone who attempts to denigrate an entire group of people, and does so before the forum moderator has to remove yet another thread that you have derailed. :)
  14. Redwood

    Redwood Master Plumber

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    The question is which train is off the tracks....
    Last message in our dialog!
  15. Southern Man

    Southern Man DIY Hillbilly

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    Yes, better to quit before you get another spanking. :)
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