Common Causes Of A Running Toilet

Toilets are relatively simple mechanisms, but several components can be the culprit when things go wrong. Here are the most common reasons why your toilet might be running:

Flapper Issues

The flapper is a rubber seal that covers the hole at the bottom of the toilet tank. When you flush the toilet, the flapper lifts to release water into the bowl and then seals the tank again once it’s empty. If the flapper is old, warped, or damaged, it might not seal properly, allowing water to leak from the tank into the bowl continuously.

Fill Valve Problems

The fill valve controls the water level within the tank. If it’s malfunctioning or improperly set, water may overflow into the overflow tube, causing the toilet to run in order to keep the tank filled.

Improper Chain Length

The chain that connects the flush lever to the flapper can be too short or too long. If too short, it can prevent the flapper from sealing correctly after a flush. If too long, it can get caught under the flapper, causing a leak.

Float Ball Maladjustment

In toilets with a float ball, the ball floats on the surface of the tank water and stops the incoming water once the tank is full. If the float ball is set too high, the water level may rise above the overflow tube. Conversely, if set too low, the valve doesn’t close soon enough, leading to continuous water flow.

DIY Solutions

Many toilet issues can be resolved with a few tools and a bit of know-how. Here are some DIY fixes you can try:

Flapper Issues

Remove the tank lid and inspect the flapper. It needs to be replaced if it looks warped, cracked, or brittle. Flappers are inexpensive and available at any hardware store. Turn off the water supply to the toilet, flush the toilet to drain the tank, unhook the old flapper, and install the new one, following the manufacturer’s instructions.

Adjusting the Fill Valve

If the water level is too high, look for a screw on the top of the fill valve which can be turned to adjust the water level. Make sure the water level is about one inch below the top of the overflow tube.

Correcting the Chain Length

If the chain is too long, it won’t lift the flapper when the flush mechanism is activated. If the chain is too short, the flapper will not sit flat on the tank bottom, and water will leak into the bowl. Adjust it so there’s only a little slack when the flapper is closed.

Setting the Float Ball

If your toilet has a float ball, bend the arm to correct its relative position to the water level.

When to Call a Professional

While many toilet repairs are straightforward, there are times when it’s best to call in a professional. Here are a few scenarios where you might need expert help.

Complex Fill Valve Systems

While standard toilets do not fall into this category, some modern toilets have more complex fill valve systems that might require specific tools or knowledge.

Persistent Leaking

If you’ve tried adjusting or replacing the basic components and the toilet continues to run, there might be a more complex issue at play, such as a problem with the supply line or a hidden leak in the tank. These types of issues should be brought to the attention of a professional, as hidden leaks can lead to costly repairs.

Installation Errors

If your toilet has never worked correctly, there may be an installation error. This can include issues like an improperly seated toilet that causes leaks at the base. These issues require professional attention since a leaking base can rot the substructures supporting the toilet over time.

Looking For A Professional Plumber To Repair A Toilet That Won’t Stop Running?

A running toilet can be a nuisance, but in many cases, the fix is simple and can be done by the homeowner. Regular maintenance and prompt repairs can keep your toilet running efficiently and prevent costly water waste. However, don’t hesitate to call a professional plumber if the problem persists or if you’re uncomfortable making the repairs yourself. Remember, promptly addressing a running toilet saves water and money and prevents bigger plumbing disasters down the line. Stop wasting water and money by giving us a call for assistance with a perpetually running toilet!

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