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Why Is My Toilet Constantly Running?

If you’ve heard running water long after flushing, you probably wonder, “Why is my toilet always running?” A…

Why Is My Toilet Constantly Running?
Apr 18, 2025

If you’ve heard running water long after flushing, you probably wonder, “Why is my toilet always running?” A constantly running toilet can waste gallons of water daily, increase your water bill, drive you nuts, and require toilet repair. It’s one of those common household problems that can sneak up on you if you’re not paying attention. If you need help figuring it out, Acknowledge Plumbing is here to make sense of it. Let’s break down the possible causes, their meaning, and how to fix them.

The Flapper Might Be the Culprit

The flapper is a rubber part inside your toilet tank that lifts when you flush, allowing water to flow into the bowl. When it closes, it should create a seal to stop more water from coming through. But over time, flappers can get worn out or misaligned. When that happens, water leaks into the bowl, and the tank refills—creating a never-ending noise cycle.

This is one of the most common issues a plumber will check first. Replacing a flapper is simple, inexpensive, and can stop your toilet from running immediately.

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Acknowledge Plumbing provides 24-hour residential and commercial plumbing repair & installation services in Sacramento County and all surrounding areas. Call our office now to schedule a nearby plumber.

Check the Float Position

The float controls how high the water fills the tank. If the float is set too high, water will spill into the overflow tube and cause the toilet to keep running. If it’s too low, you might not get a full flush. It's all about balance.

You can adjust the float by either turning a screw or sliding it down a rod, depending on your toilet type. If unsure, a plumbing repair service can adapt quickly and show you how it’s done.

The Fill Valve Could Be Worn Out

The fill valve refills the tank after you flush. Over time, this part can break down or become clogged with mineral deposits, especially if you have hard water. A faulty fill valve can lead to constant running or uneven refilling.

Swapping out a fill valve takes more effort, but it’s not too hard for someone who likes DIY home fixes. Calling a toilet repair specialist in Sacramento, CA might be your best bet if that's not your thing.

Is There a Problem With the Chain?

Another simple cause of a running toilet is the chain that connects the flush handle to the flapper. If the chain is too tight, it can keep the flapper slightly open. If it’s too loose, it might not lift the flapper properly when you flush.

To fix this, just adjust the chain length. It should have some slack, but not so much that it gets tangled. A professional plumber can easily check this if they’re already helping you with another issue.

The Overflow Tube Might Be the Issue

The overflow tube is a safety feature that prevents the tank from overflowing. If water constantly drains into this tube, something’s off—usually the float or fill valve. It could also be that the tube is cracked or broken.

While this isn’t the most common problem, it’s worth inspecting if all the other parts seem fine. A plumbing repair service can tell immediately if the overflow tube needs replacing.

What Happens if You Ignore It?

Ignoring a running toilet can lead to a surprising amount of wasted water. Even a small leak can waste thousands of gallons over a year. Not only is that bad for the environment, but it’s also bad for your wallet.

Plus, running toilets can signal deeper problems. If something small like a flapper isn’t working, it could mean other parts are wearing out too. Getting a quick toilet repair now can prevent bigger issues down the road.

How Acknowledge Plumbing Can Help

If you're not into DIY or just want the peace of mind that it’s done right, Acknowledge Plumbing has you covered. Their team can quickly identify the problem, whether it’s the flapper, fill valve, float, or something else. With their experience, they’ll have your toilet working like new in no time.

Best of all, they don’t just fix the issue—they’ll also explain what went wrong so you understand how to prevent it in the future. Acknowledge Plumbing makes it easy and stress-free to get the help you need.

Don’t Wait—Take Action Today!

Are you still hearing that annoying sound of running water? Don’t put it off any longer. Whether you need a quick part replaced or a full toilet repair, acting now can save you money, water, and stress. If you're unsure where to start, contact a reliable plumber for an inspection.

Do you need an expert's eye? A professional plumbing repair service like Acknowledge Plumbing can get your toilet back on track and your water bill under control.

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