Toto Toilet Problem

[Ezaction]

Hi guys,
Bought a Toto Eco Supreme in August and have had this problem twice. The tank is losing water. I hear the valve leaking drops of water, but the tank is half full of water. The bowl has the same amount of water it had after a flush. The valve has a number 26 on it. Any ideas? No water is on outside of the toilet.

Ez

[Gary Swart]

Most likely the flapper is not closing tightly.

[Ezaction]

I've tried adjusting the chain and lever, but it still leaks. It doesn't happen right away, but a few hours later, we hear the toilet running and a hissing sound from the fill valve when the water gets low in the tank. Can't really tell if the flapper is seated right or not. I guess I'll call Toto for a replacement flapper.