Why Won’t a Toilet Stop Running?

May 1

A running toilet can be daunting and costly. Not only can it lead to higher water bills, but it can also signal a more significant plumbing issue affecting the home.

Let’s explore some of the leading causes of why a toilet won’t stop running and what to do about it.

Faulty flapper

A faulty flapper is one of the most common reasons for a constantly running toilet. The flapper is a rubber or plastic valve that controls water flow from the tank to the bowl. If the flapper is worn out or damaged, it may not create a tight seal and allow water to flow into the bowl. In this case, replacing the flapper should solve the issue.

Broken float

The float is a small ball or cup that floats on the tank water surface. As the water level rises, so does the float. When it reaches a certain level, it triggers the toilet to stop filling with water. If the float is broken or not working correctly, it won’t perform its function, and the water will run continuously.

Clogged fill valve

The fill valve refills the tank after flushing. If this valve clogs with debris or sediment, it may not function correctly, causing the toilet to run continuously. If that’s the case, cleaning or replacing the fill valve should fix the problem.

The flush chain is too long or too short

A chain that is either too long or too short between the flush lever and the flapper can cause a constantly running toilet. If the chain is lengthy, it may get trapped under the flapper and prevent it from fully closing, causing water to flow into the toilet bowl continuously. On the other hand, if the chain is too short, it can prevent the flapper from opening fully and cause the same problem.

Adjust the chain to the proper length to fix this issue, ensuring enough slack to allow the flapper to fully close and open. This is a simple fix that DIYers with some basic plumbing knowledge can undertake. However, if the householder is unsure or uncomfortable adjusting a toilet’s chain, it’s best to contact a professional plumber.

Water level adjustment issues

If the water level in the tank gets too high, it may cause the water to flow continuously into the overflow tube, leading to a running toilet. To adjust the water level, look for the relevant mark inside the tank. Adjust the float so the water level stops at or below the mark.

Bathroom emergency

A running toilet can be hugely inconvenient, especially when it happens unexpectedly. Contact professional plumbing services if one is unsure how to fix the issue or suspects a more significant problem. An expert can diagnose and fix the problem, ensuring the toilet functions correctly and efficiently.

With over 25 years of experience, American Discount Plumbing has offered expert plumbing service and repair in Phoenix, Arizona, and surrounding cities at affordable rates for both residential and commercial properties. We are a licensed, bonded, and insured plumbing company offering 24-hour emergency service. We provide lasting general plumbing, water leak detection and repair, toilet repair, pipe repair, and water heater repair or replacement solutions. Call 602-883-2787 today!