Hi,

My toilet is making a soft, quiet water running sound (way softer than when the tank refills). The sound disappears when I turn of the water supply to the toilet.

I noticed the water level in the tank was high, pretty much at the top of the overflow tube. So I adjusted the float mechanism until the water level was about 1” below the top of the tube. I flushed the toilet and the noise disappeared for a while, but when I came back to the bathroom, it had started again.

The tank water level stays the same even when the water supply is off, so I think the flapper seal is fine. I don’t see water or dampness anywhere on or around the toilet. I’ve been leaving the toilet water supply off any time the toilet isn’t in use.

Any ideas as to what might be going on here? I’m hoping it’s something that will be obvious to people who are less clueless than I am. And that it’s something I can fix myself because it’s not the greatest time to take on a plumber’s bill.

Any guesses, advice, instructions, YouTube links, etc. would be most appreciated.

Thank you!