Toto - Water Doesn't stop

Hi;

I have a toto toilet. Has worked wonderfully. But now, tank fills up but water doesn't stop running through the little hose.

I can't figure out which model I have. Once I do that, I need to figure out how to fix/repair. Any suggestions?

It's probably a Korky valve...check out their website for pictures and instructions to see if it matches. If so, it will take about one minute, and $3 after a trip to Lowes to replace the cap which has the seal in it.

You can try to remove and clean the old one, that sometimes works if there is some sand or something caught on it, but replacement is usually the fix.