Q Our toilet has a noise like water running, but it doesn’t flush. It just kind of seeps and my water bill has gone up. Our plumber thought a new flapper valve was needed, so we installed one. It does ...

The seat disk predates the Korky flapper, so your toilet must be really old if it has a flush valve that uses one. It’s a flat rubber disk that fits over the valve opening, held in place by water ...