Why Does My Toilet Keep Running?

Is your toilet constantly running, causing frustration and wasting water? Don't worry, you're not alone. Many homeowners face this common plumbing issue. In this blog post, we will provide you with a comprehensive troubleshooting guide to help you understand why your toilet keeps running and how to fix it. At Quick Action Plumbers, we specialize in resolving plumbing problems efficiently, and we're here to help you get your toilet back in working order

Understanding the Anatomy of a Toilet

Before we explore the reasons behind a running toilet, it's crucial to understand the basic components of a standard toilet. A typical toilet comprises the following key parts:


1. The tank: This is where the water is stored before and after flushing.
2. The flush valve: It controls the release of water from the tank to the bowl during flushing.
3. The flapper: A rubber valve that covers the flush valve opening and is responsible for releasing water into the bowl during flushing.
4. The fill valve: This mechanism regulates the water level in the tank after flushing.

Common Reasons for a Running Toilet

1. Worn-out flapper: Over time, the flapper can deteriorate, resulting in water leaks from the tank to the bowl. This can lead to a continuous flow of water, causing the toilet to run.

2. Faulty fill valve: A malfunctioning fill valve may not properly control the water level in the tank, leading to an overflow situation where water continuously flows into the overflow tube.

3. Flushing mechanism issues: Problems with the flushing mechanism, such as a broken chain or handle, can cause the toilet to constantly run due to the inability to properly close the flapper.

4. Improperly adjusted float: If the float is set too high, the water level in the tank may rise above the overflow tube, leading to a continuous flow of water into the bowl.

5. Mineral deposits: Accumulation of mineral deposits in the tank or on various components can hinder the proper functioning of the toilet, leading to persistent leaks and running.

Solutions to Fix a Running Toilet

1. Check and replace the flapper if it appears to be worn out or damaged.
2. Inspect and adjust the fill valve to ensure it maintains the appropriate water level in the tank.
3. Verify that the flush mechanism is functioning correctly and repair or replace any faulty parts.
4. Clean the toilet tank to remove any mineral deposits that may be affecting the toilet's performance.


A running toilet is not only an inconvenience but also a potential waste of water and money. By understanding the common reasons behind this issue and implementing the appropriate solutions, you can ensure that your toilet operates efficiently and effectively. Regular maintenance and prompt repairs are crucial in preventing more significant plumbing problems down the line. If the problem persists despite your efforts, it's advisable to seek professional help to identify and resolve any underlying issues. Taking proactive steps to address a running toilet can lead to both cost savings and peace of mind in the long run.

At Quick Action Plumbers, we have the expertise and experience to diagnose and fix any toilet-related issues efficiently. Don't let a running toilet waste your time and money – contact us today for reliable and prompt plumbing services.