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Thread: Toilet Tank Water Won't hold

  1. #1
    DIY Senior Member jerome8283's Avatar
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    Default Toilet Tank Water Won't hold

    My toilet often runs as if it were just flushed. Also I can hear water trickling. The floor is dry. Today I did a test by flushing the toilet, letting the tank fill and shutting off the water supply line to see if the water in the tank would maintain its level. I checked it less than 2hrs later and the water was almost completely drained. What do you think the problem is?

  2. #2
    DIY Senior Member Probedude's Avatar
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    What shape is the flapper in the tank? It's likely just that it needs to be replaced.

  3. #3
    DIY Senior Member jerome8283's Avatar
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    Quote Originally Posted by Probedude View Post
    What shape is the flapper in the tank? It's likely just that it needs to be replaced.
    The toilet is fairly new, a few months old. Would the flapper need replacing so soon?

  4. #4
    In the Trades Gary Swart's Avatar
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    It sure sounds like a flapper problem. It is awfully soon for the flapper to be bad, more likely it's not seating properly.

  5. #5
    DIY Senior Member jerome8283's Avatar
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    Thanks guys. I will take a look.

  6. #6

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    If you put some of that junk in the tank they sell under the pretense of keeping the bowl clean, most of those chemicals will destroy the rubber parts in a hurry...

  7. #7

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    Also check the handle and makes sure it's not holding up the flapper just above the sealing point. Another thing to check is the chain itself and how it rests. If you have too much slack, it can get under the flapper and keep it from sealing. You want just a little bit of slack when in the closed sealed position, no slack and you can run into a sticky handle holding the flapper up too high to seal.

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