If you notice any of these issues, it might be time to consider replacing your toilet fill valve. I replaced the fill valve in my Kohler toilet with a Kohler fill valve (K-GP1083167).

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.

There are three likely culprits that can cause a toilet to run continuously — the float, flapper, or fill valve. Luckily, each is easy to replace.

In short, the fill valve isn’t closing properly. When the float lifts, it’s supposed to stop the flow of water into the tank and has to fight against the water pressure inside your pipes to do so.

Mostly likely, you’ll be dealing with a gravity-fed toilet—and luckily, nearly all of your problems can be traced to three parts: the fill valve, the flapper, and the tank lever.

It’s annoying. One moment a toilet flushes reliably. The next, it doesn’t. In most cases, the fix is fast and simple, requiring a few minutes of work and a trip to the hardware store or home ...

My toilet's fill valve is a Fluidmaster cup-style model. To flush it first reach into the tank with your right hand. Next lift the float up with it resting on top of your hand.

Once your toilet flushes, the fill valve, well, starts filling it back up. “They didn’t come up with complicated names when they named the parts of a toilet,” Sebestyen says.

Q: My toilet is causing me fits. The water from the tank is slowly leaking into the bowl, and I can’t figure out why. I have replaced the flapper, but the problem persists. What else should I do ...