Inside a standard toilet tank, there are three important parts: the flapper, the fill valve and the flush valve. The flapper is the rubber piece attached to the flush lever chain. It lifts up and down ...

The way a toilet works is a mystery to most people. But like many mysteries, a closer examination may reveal that the toilet isn’t really very mysterious at all. In fact, this device is ingeniously ...

Q:I'd like to understand just how water comes into the toilet tank. I have two toilets that overflow, and I cannot figure out how to stop it. I've tried to lift the ball on one; the other is on a ...