- water continuing to run after the tank has refilled.
- Look inside the tank to see whether water continues flowing into the overflow tube.
- Check whether water is trickling into the bowl when nobody has flushed.
- If you suspect a leak, consider a dye test using a toilet leak-detection product or a small amount of food coloring, following appropriate instructions. If color appears in the bowl without flushing, water may be leaking past the flush valve seal.
If you cannot identify the problem, or the toilet continues running, have the mechanism
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