Jacuzzi Dual Flush Toilet Keeps Running [5 Easy Solutions]

The major reasons for “Jacuzzi dual flush toilet keeps” running include a defective toilet flapper, clogged fill valves, broken zip tie, and faulty float cup. Plus, there might be excessive water level in the water tank, causing the overflow water leaks down to the bowl of the tank.

If the broken zip tie, faulty adjustable float, and defective toilet flappers are responsible, you need to replace the damaged parts to stop a Jacuzzi toilet from running. But when the fact is about the blocked fill valve, the only solution is to clean the valve in an effective way. 

Also, you have to concentrate on the water amount in the tank which should be at the proper level. To get all the above solutions procedures in detail, read through our assigned comprehensive guide.

Jacuzzi Dual Flush Toilet Keeps Running [5 Easy Solutions]

Before moving to the troubleshooting parts, let’s have a short glimpse of the mechanism of the dual flush toilet from below:

How Does The Dual Flush Toilet Work

The dual flush toilet was first introduced by the Bruce Thompson of Caroma Industries in 1980. It is basically featured with two button flushing system on the cistern that ensures to use of the proper amount of water for the flush needed. 

Among the two buttons, one is smaller for liquid waste, and another one is larger for a full flush for solid waste. Each button uses a push rod to pull the flush valve up, which will release the water. 

Almost in every dual flush system, around 3 liters of water is utilized for disposing of liquid waste and around 1.6 gallons to flush solid waste. Besides, this type of toilet employs a larger trapway and a wash-down flushing design to allow the water to come out faster and clear the bowl efficiently. 

After pressing the flush button, a huge volume of water enters the toilet bowl and pulls the waste and water down the drain. 

Reasons For Dual Flush Toilet Keeps Running

In the below discussion, we will break down 5 major reasons for the malfunction of the dual flush toilet that keeps running. Also, learn how to troubleshoot the problem in a proper way. 

Note: You can also read how to fix will bad wax ring cause the toilet not to flush.

1. Defective Toilet Flapper

If your double flush toilet keeps running, it is sure that the flapper or toilet valve seal is the leading culprit. The flapper is an essential part of the toilet tank, which is responsible for draining water from the tank into the bowl. 

In most cases, the flapper is connected with the tank by a chain. After flashing, the handle moves the chain, and the flapper lifts up that allowing the water to exit the tank. Anyway, the flapper may go bad for various factors. 

Like after long ages, high water pressure, mildew or mold, or through the growth of bacteria. For all of these, the flapper starts to crack or fails to fit perfectly around the flush valve. 

In some cases, the rubber tube becomes brittle, gets worn out or sometimes misaligned from the place, leading to the toilet leaking. To assure the toiler flapper of valve seal fault, you need to check this toilet element.

How To Check Faulty Toilet Flapper

• First up, shut off the water flow to the toilet tank.
• Then, flush your toilet to remove water from the tank.
• You need to remove the remaining water using a sponge or towel.
• Now, locate the toiler seal. Remove the canister from the flush valve to access the flush valve seal.
• Check the seal for any types of cracks and damages.
• Also, check if it is properly aligned in its place. If not, realign the flapper to fit it well in place.
• If there are cracks in the seal or if it is worn out, you need to replace the seal with a new one.   

How To Replace Flapper In Toilet Tank

Replacing the toilet flapper seal is not a tough task as long as you will follow the below instructions:

• In the first step, turn off the water supply to the tank. For this, you have to turn the toilet shut-off valve clockwise. 
• Now, flush your toilet in order to empty the tank. It will be good to hold the flush lever down to remove water as much as possible from the tank.
• Lift off the toilet tank lid and place it away in a safe place.
• Now, disconnect the bad flapper valve. Simply unclip the chain where the flapper is attached to the tank. Pull the edges of the flapper free from the pegs, and the flapper will be removed.
• Attach a new flapper back in place. Concentrate while adjusting the chain. 
• After installing the new flapper, put back the toilet tank lid and turn the water shutoff valve counterclockwise to refill the water tank. 

2. Malfunctioning Of Float Cup

There is a float cup attached to the vertical body of the fill valve assembly. This is an essential toilet element that mainly refers to the float cylinder. 

The Toilet float cup regulates the opening and closing of the fill valve. Then the fill valve fills the toilet tank with water after every flush. To the fact of the broken or damaged toilet flat cup, it fails to control the fill valve for why the water could continuously run into your toilet. 

The only solution is to replace the old float cup with the new one to get the fill valve back to its operation.

How To Replace A Float Cup In Toilet

• At first, turn off the water supply to the water tank by turning the water shut-off clockwise.
• Flush the toilet to remove the remaining water from the tank.
• Then, take off the toilet tank lid and set it aside.
• Now, remove the float ball from the attachment. Disconnect the water supply line.
• Remove any excess water tank from the water tank using a sponge or towel.
• Take an adjustable wrench or pliers and disconnect the valve nut.
• Pull out the valve and unclip the refill tube as well.
• Place the new float cup and then twist its base to adjust its height for your tank.
• In the next step, you need to insert the fill valve’s threaded base through the hole of the tank bottom.
• After securing the valve, clip back the refill tube onto the overflow tube.
• Reconnect the top supply slip nut and turn the water back on.

3. Clogged Fill Valve

After replacing the faulty flapper and float cup and still, the toilet is running, be sure the clogged fill valve is now the big reason. The fill valve may be clogged by dust and dirt, causing the fill valve to malfunction. 

The main function of the fill valve is to control the flow of water into the tank from the main water supply. It fills the toilet until the float cup reaches the set level.

But in the case of the clogged fill valve, the valve may continue running water which overflows into the overflow tube. For this, the toilet will keep running. So, in this troubleshooting stage, you will have to clean the fill valve from the stuck debris.

How To Clean Debris From Toilet Fill Valve

• First up, turn the water shutoff valve clockwise to turn off the water supply to the water tank.
• Remove the top of the toilet tank.
• You will find a fill valve covered with a cap on top of that. 
• Now, grip the shaft of the fill valve with one hand. Simply twist the cap of the fill valve counter-clockwise to remove the cap.
• Once the cap removes, the fill valve will be inspected.
• You will find stuck debris in the fill valve.
• Take a brush to pick away dust. 
• Now, you can do a flush in the fill valve for better cleaning. For this, you need an empty cup. Just hold the cup upside down over the fill valve.
• Turn the water shutoff valve counter-clockwise to turn the water back on to the toilet. The water will start gushing out of the fill valve. Plus, this will flush out any sediment or debris.
• Keep flushing the fill valve for 15-30 seconds.
• After cleaning, replace the cap of the fill valve by twisting it clockwise.
• Place the toilet lid back in place and turn on the water to the toilet.

4. Broken Zip Tie

In every dual flush toilet, there has a zip tie connected with the fill valve to keep the base of the valve in place. But if the zip tie wears out and is broken, it affects the function of the fill valve. Due to the malfunctioning of the fill valve, the toilet will start running.  

Solutions:

You need to replace the broken zip to solve this issue. It will be better to install two zip ties on the base of the fill valve. This will ensure you a better placement of the fill valve, and the valve won’t be wobbling anymore. Contact a plumber to replace the zip tie of the fill valve.

5. Excessive Water Level In Water Tank

High water pressure or incorrect water level in the toilet tank is another leading reason the dual toilet keeps flushing.  The water level in the water tank is manually controlled by the adjustable float.

 If it is set too low, the water level in the bowl will also be low. On the contrary, if it is set too high, water spills into the toilet overflow tube which will fail to shut off the fill valve. For this, the water will keep running. 

So, in short, here you need to do to adjust the water level in your toilet’s tank.

How To Adjust Dual Flush Toilet Mechanism

• First up, remove the toilet lid from the top and place it in a safe place.
• You will find water in the tank. The water level in the tank should be about a half inch below the top of the overflow tube. If it is lower and higher than that, you need to adjust the level.
• Locate a notch or adjustment screw on the back of the fill valve. Turn counterclockwise to free the valve.
• If needed, take a screwdriver to turn the screw. Once the valve is unlocked, you need to lower the valve to decrease the water level.
• Ensure the water level is ¼ to ½ inch below the overflow tube.
• After adjusting the water level, lock the notch securely.
• Finally, put the lid back on the tank.

FAQs:

Wrapping Words

Well!! That’s all about the Jacuzzi dual flush toilet that keeps running. Hopefully, you are now clear on each of the aspects that lead to the dual flush toilet keeps running issue. We can expect that you will easily fix the issue by following the above guide. 

Still, if you have any questions that have been left behind, don’t hesitate to ask us through comments. We are always here for you.