In many standard toilets, this valve consists of a flapper — a rubber or soft plastic plug located at the very bottom of the toilet tank. This flapper connects to the flush handle arm via a chain.

The float, the flapper, or the fill valve are the most likely causes of a toilet running continuously. You can perform easy tests like monitoring water movement to help identify the cause.

There should be a shutoff valve or knob at the rear of your toilet, typically on the wall or floor. Turn the knob clockwise to shut it off. Next, remove the tank lid.

A moaning toilet is likely caused by a faulty fill valve, commonly known as a ballcock or float valve. Use this guide to replace it with a new one.

Some toilet manufacturers, like American Standard, make dual-flush toilets with two flush valve openings. One allows for a full flush, the other a partial flush. These toilets require two flappers.

Replacing the flush valve is a chore, as it involves removing the tank from the bowl. So, you will need to turn off the water to the toilet, disconnect the supply line to the fill valve and drain ...

It appears, though, that it is the kind where the float is attached directly to a shaft on the water intake valve so that as the water level in the tank rises, the float shuts off the water by ...

2. Replace the Fill Valve If adjusting the float doesn’t do the trick, you may have a leaking fill valve might be beyond saving. Replacing it is straightforward but has a few basic steps.

How to Repair a Running Toilet 1. Adjust the Float The float arm controls the water level in your tank. If it’s set too high, water will keep running into the overflow tube. Locate the float: It ...