Why Won't My Toilet Stop Running?

A constantly running toilet is not just annoying—it can also waste significant amounts of water, driving up your utility bills. If you’re dealing with this issue, understanding the common causes and knowing how to fix them can save you time, money, and frustration.

At Baldwin Cooling, Heating, Plumbing & Electrical, we’ve seen it all when it comes to plumbing issues. Here’s what might be causing your toilet to run and what you can do about it.

Common Reasons for a Running Toilet

Several components within your toilet work together to regulate water flow and maintain proper function. When one of these parts fails, your toilet can start running continuously. Here are the most common culprits:

1. Tank Float Issues

The tank float controls the water level inside the tank. If the float is set too high, it can prevent the fill valve from shutting off, leading to constant water flow.

2. Flapper Valve Malfunctions

The flapper valve is responsible for sealing the flush valve opening after a flush. If the flapper doesn’t close properly—due to wear, dirt, or misalignment—water will continue to leak into the bowl.

3. High Water Level

If the water level in the tank is too high, it can spill into the overflow tube and keep the toilet running. Adjusting the water level can prevent this issue.

How to Stop a Running Toilet

If you’re comfortable troubleshooting, try these simple steps to resolve the issue yourself:

1. Check and Adjust the Water Level

• Remove the porcelain tank cover.
• Look at the water level—it should be 1-2 inches below the overflow tube.
• If it’s too high, adjust the float arm to lower the water level. This can usually be done by turning a screw on the fill valve or gently bending the float arm downward.

2. Inspect and Replace the Flapper Valve

• If the water level looks fine, inspect the flapper valve at the bottom of the tank.
• Look for signs of wear or damage, such as cracks or a loose seal.
• Replace the flapper if it’s not sealing properly—replacement parts are inexpensive and available at most hardware stores.

3. Tighten or Replace the Fill Valve

• If the above fixes don’t work, check the fill valve for leaks or damage. Tightening or replacing the fill valve may solve the issue.

Call the Pros for Reliable Toilet Plumbing

If you’ve tried these fixes and your toilet is still running, it’s time to call in a professional. At Baldwin Cooling, Heating, Plumbing & Electrical, our experienced plumbers can quickly diagnose and repair any toilet issue, from leaks to clogs and everything in between.

Don’t let a running toilet waste your time or water. Contact us today to schedule your plumbing appointment and restore peace to your bathroom!