How to Fix A Running Toilet with A Button Flush

Toilets with a button flush are the most common and handy of the lot. Just when you are done emptying your bowls, push the button. Get done with the nasty waste from the toilet instead of pulling or pushing a lever or chain.

However, the handiest ones also come with their issues. And one common issue with the toilets is the running water that could cause gallons of water wastage in the long term.

Toilets with a button flush have the same issue. So, the moment one faces the inconvenience of a running toilet, the foremost move has to be anyhow fixing it. You can call a plumber, or the best bet, try fixing it yourself.

How to Fix A Running Toilet with A Button Flush

Fixing A Running Toilet With A Button Flush Yourself

Now you might be wondering how you can do it yourself. Let us clear the air by revealing that we suggested it because we will now explain how to fix a running toilet with a button flush for you to do it yourself without any help or calling the plumber. So, without further ado, let’s begin.

Button Flush Toilet

A button flush toilet is a toilet with a flush system that allows you to flush water in two different quantities. Not always, though. If the flush toilet flushes water, the same quantity every time with one button, it still is a button flush toilet.

However, at present dual flush toilets are the most used and popular button flush toilets. Quite naturally, when multiple people use a toilet, most of the time, it requires less water flushing because it’s liquid wastes. But if there are no two options, then you have to flush way more water without any reason, after every use. Which basically results in water wastage and an increase in the water bill.

When you have a button flush toilet, you have the option to half flush and full flush. Half flush is for the liquid waste where you require less water usage than cleaning up the solid waste where you, of course, need double the quantity of water to clean the bowl.

Understanding The Anatomy Of The Button Flush

The button flush toilet will, of course, have a tank, a cistern with a lid. The lid will have a button on the top that is connected to the flush valve or outlet. Connected, in a sense that, when you push the steel button, the small pipes or links right beneath the lid where the button is up on the cover will push the flush valve and release water with the internal flushing mechanism.

The flush valve also includes the overflow pipe, which is basically a pipe that works as a marker of the water level in the tank, and also stops the tank from flooding. It’s the barrier so that the water in the tank remains a certain quantity, and that quantity is decided and controlled by the fill valve or inlet.

The fill valve must always be at a certain height compared to the overflow pipe for the flush system to work the right way. To be more precise, it’s the float cup that has to be beneath the overflow pipe. So, the top of the fill valve has to be 3-inch taller than the overflow pipe, never beneath, and the float cup has to be an inch beneath the overflow pipe, never above. If it’s not, the flush will not fill properly, cause flooding, and at the end will be of no use.

Now, a running toilet can happen due to several reasons, But there are three common reasons. And these reasons are related to the flush components only, which are the flush valve or outlet and fill valve or inlet. And if you can solve these common issues, the running toilet fixing will take no time and cost you almost nothing.

The Outlet

The easiest way to understand whether the running toilet issue is due to the flush valve or not is to check whether the overflow pipe has water in it, till the top. If it’s not and the water is on a perfect level, then the issue is definitely in the flush valve, aka outlet. So

  • Just empty the flush tank by flushing the toilet and remove the flush valve carefully.
  • Be very careful while removing the flush valve to avoid permanent damage to the flush system. A slight twist on the left or right side will make it pop out easily.
  • Try both sides firmly but carefully, and with a slight sound of a click, it will release from its connection point.

Upon removing the outlet, you will notice that the overflow pipe is well-connected to the connection point of the flush valve. Moreover, the thing holding the water from draining was a rubber seal down the flush valve. So

  • That indicates the seal has to be undamaged to hold the water back in the flush tank.
  • Check whether it’s still usable or not by assessing.
  • If you notice slight damage, you know why the toilet is continuously running.

So you will have to replace the rubber seal, which is very affordable and easily found in shops nearby. If it’s an emergency, you can remove the seal and try to flip it and use it. Basically, you make do with the unused side of the seal. In most cases, it works but might not be a complete solution. But till the time you get your new rubber seal, it will work.

If the rubber seal is not damaged, then the second reason for the running toilet could be the disc that goes up and down with the push on the flush button.

  • The up and down movement of the disc has to be smooth.
  • The disc properly sitting on and fitting the connection point, and sealing it is crucial.
  • If the movement is not smooth, know that the entire flush valve needs to be replaced.

Now, when neither the rubber seal nor the smooth up and down movement is the reason for the running toilet, the next step is, of course, checking the inlet or fill valve. So, pop in the flush valve in its connection point and work on the fill valve. Before you install the outlet back, make sure to clean around the connection point thoroughly. In some cases, a filthy connection point can cause a running toilet due to failure to seal.

The Inlet

If it’s not the flush valve, it has to be the fill valve. To make you learn how to fix a running toilet fill valve, let’s get into details. The running toilet issue, if, is related to the inlet, then it has to be the washers on the top section of the fill valve. So

  • To check the top section of the inlet, you will have to remove the entire fill valve. To remove it, you will have to unscrew the nuts with a wrench beneath the tank.
  • Also, make sure the tank has no water in it. After you have unscrewed the nuts, the entire fill valve will come out of its slot.
  • Now remove the top cap to expose the top section of the inlet. You will have to remove the round ‘thingy’ by turning it left and right. It will be stuck and tight, so be careful while removing it.
  • To make your work easier, just unscrew the float cup adjustment screw. You will have a better hold on the top section, and it will be easier to rotate and remove.
  • Upon rotating and removing the top section of the fill valve, you will have the round thing, quite small in hand. Flip it and see inside.
  • You will see a round disc with a thin sharp pointer in the center. Use forceps to remove the disc from the slot. It’s a simple plastic disc.
  • Upon removing the disc, you will see the washer or several washers in the top section of the fill valve. And most certainly, it will be the large washer that is damaged and causing a running toilet.
  • Replace the washer or replace the entire inlet, and it will solve your running toilet issue.
  • If you are replacing the washer and not the entire fill valve, make sure you wash the top section thoroughly to remove all the debris from that section and reinstall it.

Overflow Pipe

If you notice that the water is in the overflow pipe, understand that your tank is filling too fast and too much as the fill valve is not adjusted correctly.

  • The overflow pipe is basically taking all the extra water inside it and releasing it in the toilet bowl to avoid flooding water through the lid.
  • You will have to adjust the float cup to control the water filling speed of the cistern.
  • Adjust the cup, fill the tank and flush the tank to achieve the right adjustment.
  • Also, work on the water connection to lessen the water filling pace.

The thumb rule of DIY is that the process has to be comfortable and doable for regular people. And our motive was to explain the method, thus and thus, that you instantly understand how to do it most easily and quickly. Fixing a running toilet with a button flush is a matter of a few minutes. But if nothing works, do not live with a running toilet as if the constant annoying noise, ghost flushing, waste of water don’t matter. Call the plumber and fix the problem pronto.

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