Why Is My Toilet Spraying Water From The Tank? (+ Fix)

One of the problems why your toilet sprays water is because its tanks are overflowing with water.

If your toilet tank is overfull, it results in you having faulty bowls, that when you flash a large amount of water, it sprays upwards or towards you.

The primary reason why your toilet sprays water from your bowl upwards is that its fill valve is damaged.

It is why during your filling stage, the water is supposedly flowing down to its standpipe to refill the bowl and the toilet trap.

If your standpipe line is damaged or misaligned slightly, this can use your water to spray up against the toilet’s underside lid.

If you experience this kind of issue, you may need to call a professional to discuss your fill valve replacement and standpipe replacement process.

They can review the system for you since they know more repair works than you.

Indeed, defecating in a boil with the broken tank is not great, especially when it’s time for flushing it. It would help if you ran backward after pressing the button to flush your bowl because the water might spray at you.

If you want to know more about spraying water from the tank and how to fix this, you are on the right page.

To learn more about fixing your broken tank toilet, we strictly break the necessary process to give you a practical guide in fixing a broken tank toilet. You may keep on reading.

Why Is My Toilet Constantly Trickling?

The cause of your toilet’s constant trickling is due to a lousy flapper; it is why it needs to be cleaned. Before you start fixing your tank and bowl, drain it first.

If after cleaning and still the issue is not fixed, then it’s time for you to replace your toilet flapper.

Moreover, maintaining your toilet is very important. We should not overlook our toilet issues at home to prevent having more severe problems.

Essentially, our toilets are a luxury that we have, and we take them for granted. Although your toilet stills work even if you have it for years, you may also experience clogs and leaks that need our attention from time to time.

Here are the five common reasons why your toilet constantly:

1. Damaged Flapper

Your toilet holds water in a tank until you flush the water in its tank, so if you have a broken flapper, your toilet won’t be able to control its water flow between your tank and bowl.

A damaged flapper is easy to fix yourself. Using a toilet repair kit, you can easily remove your old flapper inside the tanks and replace it with a new one.

2. Jammed Flapper

Even your toilet flapper is in good shape; hence it’s not doing its job; it’s useless.

Usually, flappers stick only in an open position, allowing the water to flow from the tanks to your bowl continuously. If you have a stuck flapper, it causes having a limp and unresponsive one.

3. Broken Supply Line

The water you use in your bowl passes through a cold-water supply line. When the supply line is working correctly, the line is a closed system, preventing the air from sucking in and out the water.

However, if it’s damaged, you may notice water dripping on your floor around your toilet. Repairing this issue is quite tricky, so you may need a plumber to assist with your problem.

4. Damage Tank

Toilet tanks hold all the water to flush your bowl. If you have a damaged tank, you may notice water around your commode.

To repair it you may need to buy a new toilet tank. But if your money is still tight right now, you may use some sealant products that temporarily stop the leaking.

5. Bad Float

The water should stop filling your toilet tanks when it already reaches a certain level. The float is located at the top of the water.

It is the one that monitors the water level and disengages the supply when it reaches the required level. So, if your water leaks, it means that you have a bad float.

How Do I Stop My Toilet From Trickling Water?

Over the years of using your toilet, expectedly, you will encounter some issues. One of those issues is having a trickling toilet.

So, how to stop your toilet from trickling water?

You may need first to reset the level by adjusting the float inside the tank, which is attached in the overflow tube or at the end of the metal rod.

After that, turn off the water valve under your toilet tank and flush the toilet until the tank is drained.

You may now move the stop guide about an inch down to the overflow tube. If the type of toilet you purchase has ball float, you can make two adjustments.

What Tools Do You Need To Fix This?

When it comes to repairing or replacing your toilet, you need to hire a plumber. Hence, if you know how to do it yourself professionally, you don’t need to.

Replacing or fixing your toilet seems like a messy or complicated job, but it doesn’t need to be like that.

If you follow the guide correctly, replacing it will be simple and successful. However, in every fixing process, you need to gather the tools first.

You must already organize your tools before beginning fixing your toilet issues to become convenient and easy for you to grab the tools.

Here are the six essential tools that you need to prepare before fixing your toilet:

  1. Closet Bolts
  2. Closet Bolt Covers
  3. Wax Bowl Ring
  4. Closet Flange Extension Ring
  5. Toilet Flapper and Tank Lever

Can You Fix A Toilet That Is Spraying Water Yourself?

Fixing your toilet is challenging, especially if you’re a newbie. So, if you’re a newbie, don’t risk fixing it yourself because you may cause more severe damage to your toilet.

However, there is a guide that might help you fix it; follow the guide correctly, and in no time, you may now enjoy your conditioned toilet again.

Below is the guide that will help you fix your toilet:

1. Test Your Toilet’s Flapper

To replace your toilet flapper, first shut off your water supply valve under your toilet. Then, push down the flapper with a stick; when you hear the water running observe if it stops.

If it stops, your flapper isn’t sealed correctly. You need to buy a new one.

After that, check your toilet’s fill tube length and cut it back at least half-inch another the waterline.

2. Check Your Toilets Fill Valve

To check your toilet fill valve, you need to flush your toilet first. If you already located the fill valve, lift the toilet float arm to see if the water stops.

Bend or adjust the toilet float arm so the tank will stop filling when the water is half to one inch below the top of an overflow pipe.

If it still leaks, you may need to replace it right away.

3. Replace your Old/Damage Fill Valve

To replace your old or damaged fill valve, turn your water supply, flush the toilet, and use a sponge to get all the remaining water from your tank.

Disconnect the water supply line from your toilet tanks, unscrew the fill valve locknut, and it out and replace the old fill valve.

4. Install A New Fill Valve

You may insert a new fill valve in the tank, then tighten up the locknut a half turn.

If the fill valve is at its maximum height, but the overflow is still higher, shorten the overflow pipe with a hacksaw.

5. Connect The Fill Tube

To connect the fill tube, attach one end of a new fill tube to fill the other’s valve nipple. Clip the angle adapter on the overflow pipe and finish the installation by attaching a flapper chain to flush the liver.

Then open the water supply and test if it’s already fixed.

Will A Constantly Running Toilet Overflow?

Yes, indeed, your toilet will flow if it leaks continuously. Your toilet’s overflow tube ensures that the tank doesn’t overfill with water.

But if the fill valve inside the tank is set too high, a small amount of water will leak into the overflow tube and the bowl, preventing it from overflowing more.

Can A Running Toilet Increase Your Water Bill?

Yes, it will increase your water bill. It is because your toilet tank is attached to the water supply, so if it’s damaged, it leaks a lot.

A continuously running toilet can waste up to two hundred gallons a day if left untreated, so fix your toilet right away to avoid paying more money.


In summary, throughout the year’s toilet’s capacity also deteriorates, leading to leaking or clogging; however, there are ways to fix this matter.

Fixing your toilet should be your priority since we use our toilets every day. It is why it needs to be given attention.

Lastly, if you don’t want to pay more bills caused by a running toilet, fix your toilets now.


Image credits – Canva

I have over 20 years of experience in construction. For the past 12 years, I've been mostly devoted to bathrooms, where I have my own business. I've seen almost every problem, so I believe I can help you. Read more