How to Fix a Kohler Toilet that Keeps Running: A Step-by-Step Guide

Understanding the Cause of the Running Toilet


running toilet image

Is your Kohler toilet running continuously? You may have tried jiggling, adjusting, and tinkering with the float in the tank, but nothing seems to work. Most often, a running toilet is a simple and inexpensive fix, granted you understand and address the root cause of the issue.

There can be several reasons for a running toilet. It could be a flapper that’s worn out, disconnected, or cracked. Often, the flapper valve is the underlying cause of toilet tank leakages that causes water to keep running into the bowl. When the flapper falls out of place or has limescale deposits, it doesn’t seal the valve, which leads to a leakage and continuous flushing.

Another common reason behind a running toilet is the float. The float, also called the ballcock, rises with the water level in the tank and controls its flow. It tells the valve when to refill and when to stop. If it fails to perform these two functions, the valve doesn’t close, and water keeps running.

Similarly, a faulty refill valve can cause continuous running. The refill valve replaces water in the tank after flushing. If its seal tears or becomes damaged, the valve doesn’t sit correctly, and water keeps flowing until the tank level lowers to a point where the float signals for a refill.

The water supply valve could also be a culprit to a running toilet issue. If the valve is partially open, it doesn’t allow enough water to fill the tank, causing it to run continually. It’s essential to check the water supply valve and ensure it’s entirely open to enable water to flow smoothly into the tank and refill it.

Moreover, hard water can lead to deposits and debris accumulation, causing blockages around the toilet’s critical components, including the valve, tank, and flush. These blockages obstruct water flow and cause a running toilet. So it’s essential to clean the tank regularly and remove any visible mineral deposits that can clog the toilet.

In conclusion, a running toilet isn’t just annoying and wasteful, but it can also lead to an increase in your water bills. Identifying and fixing the root cause of the issue can save you time, money, and hassle. The good news is that these are minor problems that anyone can handle with the right tools and basic plumbing knowledge. If you’re not a handy person, consider hiring a plumber to fix the issue permanently.

Replacing the Flapper to Fix a Running Toilet


Flapper Toilet

One of the most common reasons for a toilet to run non-stop is a flapper that is not properly sealing the tank. When the flapper is faulty, water from the tank can leak into the bowl, causing the water level in the tank to drop and the fill valve to turn on again. This constant flow of water can result in high water bills and unnecessary water usage. Below, we’ll outline the simple steps you can take to replace a faulty flapper and stop your running toilet.

Firstly, you need to determine what type of flapper you need. Kohler toilets typically have proprietary flappers that are specific to their models. You will need to turn off the water supply to the toilet and remove the tank lid. Look at the flapper and take note of the model number, then purchase an identical replacement from a local hardware store or online retailer.

Next, turn off the water to the toilet at the shutoff valve located on the wall behind the toilet. Flush the toilet and hold down the handle to drain as much water out of the tank as possible. A sponge or towel can be used to mop up any remaining water.

Remove the old flapper by disconnecting it from the tank lever. To do this, simply unhook the chain or cable from the lever arm and slide the flapper off the overflow tube. Some flappers may have plastic tabs that hold them in place, these can be removed by gently twisting and pulling them free.

Install the new flapper by sliding it over the overflow tube and hooking the chain or cable onto the tank lever. Ensure the flapper is properly seated on the overflow tube and there is no obstruction that could prevent it from sealing.

Turn the water supply back on and let the tank refill. Check the flapper seals the tank correctly by flushing the toilet a few times and observing if there is any water leaking into the bowl. Adjusting the length of the chain or cable may be necessary to ensure the flapper raises and lowers properly to stop water flow from the tank to the bowl.

In a few simple steps, you can replace a faulty flapper and fix your running Kohler toilet. By doing so, you can save money on your water bill and prevent wasted water usage.

Adjusting the fill valve to stop a running toilet


Adjusting the fill valve to stop a running toilet

Is your Kohler toilet running even after use? Does it sound like it is always refilling? If yes, then the problem is probably with the fill valve. In most cases, the fill valve is responsible for the running toilet, and it is usually an easy fix. Here are the steps to adjust the fill valve to stop your Kohler toilet from running and prevent wastage of water:

Step 1: Check for leaks

Check for leaks

The first thing you need to do is check for leaks. Look for water outside of the bowl that may cause damage to the floor or walls. You can also check the overflow tube located at the center of the tank to see if it is flooded. If you notice water running into the overflow tube, then the fill valve needs adjustment.

Step 2: Turn off the water supply

Turn off the water supply

The next step is to shut off the water supply. Locate the water valve that supplies water to the toilet. It is usually located below the toilet tank on the wall or floor. Turn the valve clockwise to stop the water supply. You can also flush the toilet to remove the water from the tank and the bowl.

Step 3: Adjust the float

Adjust the float

Adjusting the float inside the tank is the most common solution to a running toilet. First, remove the toilet tank lid and look for a float. The float is a round or oblong ball that sits on top of the water inside the tank. It is usually attached to a lever or arm. If the float is too high, the water will run continuously, and if it’s too low, the tank won’t fill up enough. To adjust the float, turn it clockwise or counterclockwise. However, not all floats are adjustable, so check the manufacturer’s instructions to know how to adjust the float properly.

Step 4: Adjust the refill tube

Adjust the refill tube

The refill tube is the small flexible tube that runs from the fill valve into the overflow tube. Sometimes it may be inserted too deep or too shallow causing a running toilet. If the refill tube is positioned too low, then it will siphon water out of the tank, causing it to continuously refill. If too high, it may spray water over the overflow tube into the bowl. To adjust the refill tube, ensure it is clipped to the overflow tube, and the lower end is about 1 inch above the top of the overflow tube. If the refill tube is still too long, you can cut it to the right size.

Step 5: Flush the toilet and check for leakage

Flush the toilet and check for leakage

After adjusting the fill valve, turn on the water supply and flush the toilet. Watch the toilet fill and look for possible water leakage. If there is no leakage, the toilet tank should fill up to the correct level and switch off. Test for leaks once again before replacing the lid and locking it into place.

Conclusion:

Fixing a running Kohler toilet is a quick and straightforward job that requires a bit of know-how and some tools. However, if the problem persists after following these steps, or you are uncomfortable with undertaking the repairs, you should contact a licensed plumber or technician. Fixing a running toilet is essential, as it not only leads to water wastage but also drives up your water bills. A well-functioning toilet saves you money and ensures a clean and hygienic environment.

Cleaning mineral deposits to fix a running toilet


Cleaning the toilet with chemical cleaner

Mineral deposits can build up in your toilet’s tank, leading to a running toilet. To fix this issue, you’ll need to clean the inside of the tank. Here’s how:

Step 1: Turn off the water supply to the toilet

Before you start cleaning, turn off the water supply to the toilet. You can usually find the shut-off valve behind the toilet or on the floor near the base of the toilet. Turn the valve clockwise to shut off the water flow.

Step 2: Flush the toilet to empty the tank

After turning off the water supply, flush the toilet to empty the tank. Use a sponge or towel to remove any remaining water from the tank. This will make it easier to clean the inside of the tank.

Step 3: Use a cleaning solution to clean the inside of the tank

Cleaning the inside of a toilet

There are several cleaning solutions you can use to clean the inside of the toilet tank. One option is to use a combination of white vinegar and baking soda. Mix one cup of vinegar and one cup of baking soda and pour it into the toilet tank. Let the mixture sit for about 10 minutes, then scrub the inside of the tank with a toilet brush. Another option is to use a commercial cleaning solution specifically designed for removing mineral deposits. Follow the instructions on the product label.

Step 4: Use a pumice stone to remove stubborn mineral deposits

Cleaning toilet bowl using pumice stone

If there are stubborn mineral deposits that won’t come off with cleaning solution, use a pumice stone to scrub them away. Wet the pumice stone and gently scrub the mineral deposits. Be careful not to apply too much pressure, as this can scratch the surface of the toilet tank. Rinse the tank with water after using the pumice stone.

Step 5: Turn on the water supply and check for leaks

After cleaning the inside of the toilet tank, turn on the water supply and let the tank fill up. Check for any leaks around the base of the toilet or the water supply valve. If you notice any leaks, tighten the connections or contact a plumber to fix the issue.

By following these steps, you should be able to clean mineral deposits from your toilet tank and fix a running toilet. It’s important to regularly clean your toilet to prevent mineral buildup and ensure it’s functioning properly.

Seeking professional help for persistent running toilets


plumber

When you have tried all the DIY options and your Kohler toilet is still running, don’t hesitate to seek professional help. You may have a more complex problem that requires the expertise of a licensed plumber.

A plumber will take a thorough look at your toilet and identify the exact problem. They may use special equipment like a hydro-jet to clear any blockages that you may not have noticed. Plumbers also have access to more advanced equipment to detect leaks and other potential problems that can cause your Kohler toilet to run. If your toilet has a faulty valve, float, or flapper, the plumber can replace it with a genuine Kohler part.

It’s important to note that while it may seem like a hassle to pay for professional help, it’s much better than constantly wasting water and money on high water bills. By fixing your running Kohler toilet, you’ll save water, money, and your peace of mind.

When looking for a plumber, ensure they are licensed, insured, and have a good reputation in the industry. Don’t shy away from asking for references or reading online reviews from their past clients. It’s also essential to compare quotes from different plumbers to avoid overpaying for a simple repair.

Remember, fixing a running toilet is not an option – it’s a requirement. By seeking professional help, you’ll not only fix your Kohler toilet but also prevent more significant plumbing problems down the line.

In conclusion, if your Kohler toilet is still running after trying the DIY solutions above, don’t hesitate to seek professional help. Plumbers have the expertise and tools to identify and fix complex issues that you may not be able to fix on your own. By hiring a licensed plumber, you’ll save water, money, and ensure your toilet is in top shape. So, don’t wait any longer – call a plumber today!

Leave a Comment

Your email address will not be published. Required fields are marked *

Scroll to Top