Why Does My Toilet Keep Running?

A plumber is working on a toilet with a wrench in a pink titled bathroom

One of the most commonly asked plumbing questions is, “Why does my toilet keep running?” It’s a common household question that can yield many answers. There is no one reason why your toilet could be perpetually running. This blog will go over some of the more common reasons why a toilet will continue to run when it doesn’t need to be.

The Causes

There are a few reasons your toilet may keep running. The most common problem is that the flapper or flush valve seal has worn out and needs to be replaced. If this is the case, you'll need to purchase a new flapper or flush valve seal and install it according to the manufacturer's instructions.

Another possibility is that the water level in your toilet tank is set too high. This can cause the water to constantly flow into the bowl, causing the toilet to run. To fix this, simply adjust the water level in the tank so it's about an inch below the overflow tube.

If neither of these solutions solves your problem, there may be something wrong with the fill valve itself. In this case, you'll need to replace the fill valve. Be sure to follow the manufacturer's instructions when doing so.

Finally, if your toilet is still running after trying all of these solutions, you may have a leak in the plumbing. This is a more serious problem that will require the help of a professional plumber. A professional plumber can also notice and diagnose problems you may have missed. It’s nice to have a wealth of knowledge at your fingertips while searching for the cause online, but a professional plumber is far less likely to lead you astray. They will also be able to fix and resolve the problem the first time, saving your time, money, and frustration.

How We Can Help

If your toilet keeps running, don't despair! There are a few things you can try to fix the problem. With a little patience and some trial and error, you should be able to get your toilet back to normal in no time. If the problem persists or comes back frequently, it’s time to contact a professional plumber. At Bailey Plumbing Inc. our expert technicians have experience in repairing, replacing, and installing every essential plumbing fixture.


For all of your plumbing needs and questions contact Bailey Plumbing Inc. at (408) 752-5195! We are friendly neighborhood plumbers, coming to the rescue throughout Central Valley, CA.

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