Under your toilet tank’s lid, there’s a ball cock (which controls how the tank is filled) and a flush valve that controls the flow of water from the toilet’s tank to the bowl. When the toilet gets flushed, the lever raises the chain that’s connected to the stopper. The stopper gets lifted, and water rushes into the bowl. Then, the water is forced by gravity out through the trap. Once the tank is empty, the stopper lowers and the float ball forces the ball cock to allow more water into the tank. As the tank fills, the float ball rises until it shuts off the flow. If the water does not shut off automatically, the overflow tube will carry away the excess.
How do you troubleshoot a noisy toilet? It’s most likely caused by a problem with the ball cock, or by a restricted flow of water. Fix it by adjusting the shutoff valve, and oiling the lever and replacing the ball cock washers and assembly. Of course, before any work is done on the toilet, the water needs to be shut off at the valve, the toilet should be flushed and any remaining water should be absorbed.
Sun, Oct 11, 2009
Plumbing Info