Toilet runs for up to 24hrs after flushing

Ask a Plumber

I have a newer dual flush toilet that runs water for a day after flushing. This happened twice. What is the problem? I waste water if I don’t hear it running.


Answer ( 1 )

  1. Sounds like you have a very small leak going from your tank down to the bowl. If, out of the blue, your toilet sounds like it is filling itself you probably have a problem with the flapper. Because it is a duel flush it may have a more complicated mechanism inside the tank that you may want to call in a professional to take a look at.

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