Why Does It Sound Like Water Is Constantly Running?

Having on-demand water is a great convenience, but it can also cause problems. One of these is the potential for a leak that can occur. You can take actions to address this issue and prevent it from happening in the first place.

If it sounds like water is constantly running and there’s no leak, it could be a broken pipe or an internal leak, and you should check your water meter. Aside from the water meter, look for other plumbing fixtures affected by running water, such as the water heater and the toilet tank.

This post will instruct you on resolving these plumbing issues quickly.

Why Does It Sound Like Water Is Constantly Running?

A home’s plumbing system is not the priority until it makes various noises and problems. One of these is constantly running water. Multiple factors can cause this issue. You can fix it immediately, but it can also lead to costly repairs.

Elongated Refill Tube

One of the most ordinary reasons for a running toilet is the length of the toilet’s overflow tube. When it’s too long, it won’t stop the water from coming out of the tank, and it can also cause pipes to overflow. Although it can be a bit of a hassle, it’s generally a good idea to fix it.

When the refill tube gets damaged or falls off, the water pressure in the tank might not deliver the necessary amount of water to flush properly. It is the opposite of how you would run water into the toilet.

Leaky Toilet Flapper

If the water issue is not with the float but with the toilet flapper, it’s probably time to replace it. A leaky flapper can prevent the water from flowing correctly through the bowl. It can also control the toilet from working correctly.

You can quickly identify this issue by adding some blue colors to the tank of your toilet. It will help prevent the water from entering the bowl and eventually turning blue. Doing so will allow you to identify a damaged flapper quickly.

Slab Leakage

If you hear running water near the water heater, it could be that the slab has become leaky. Although it’s normal to listen to the water moving through pipes close to the heater, it can be problematic if it still happens, even if the switch is off.

Improperly Adjusted Float

The float inside the tank controls the flow and height of water. If it’s not in its original position, the water will continue to flow through the pipes.

Using a float for years will eventually cause it to get damaged or tired. It will prevent it from stopping the water flow. It will also keep running into the tank.

Toilet Tank Is Faulty

A faulty toilet water tank can cause the water to seep into the ground or the bowl, but this usually isn’t the case. If you hear a faint sound in your bathroom, the damage to the tank itself is the cause, which is apparent inside.

The sound of water coming from the toilet tank echoes because of the overuse of water. The water can seep into the tank when the overflow tube cracks.

The rubber bands that seal the toilet tank can eventually get damaged, causing a tiny opening. It can then lead to the water leaking into the bowl.

After identifying the cause of the issue, a skilled plumbing technician will flush the toilet and inspect the damages. They can then fix or replace the damaged parts. Common injuries caused by a faulty ball float or tube include a leaking pipe, a damaged flapper, and a defective ball float.

How to Fix the Constant Running of Water?

After learning the real reasons behind the water noise coming from pipes or toilets, it’s time to fix and save water. Doing so will decrease the amount of water in the waste stream.

You will need the following items for the job:

  • The correct fill valve
  • Toilet replacement parts
  • Cutting tools
  • Multi-bit screwdriver
  • Rubber gloves.

Reposition the Float

A common issue of water running into a toilet tank is an improperly positioned float. It occurs when the float is too high or low.

You need to lower the height of the float inside the tank to prevent it from tipping over. To do this, empty the tank first. Then, remove the float arm and access the screws against the tank’s flash tube.

If you have a column float in your toilet, it should be attached to the flush valve. Loosen the screws and apply mild pressure to the float until it positions correctly.

Fix Flapper’s Leaks

If the water inside the toilet is running due to a leaky flapper, then it’s time to replace it. You will need to go to a local hardware or plumbing store to get a new one.

Switch off the water supply to your toilet and flush the tank. Doing so will allow you to access the old flapper easily.

The toilet flapper is attached to a chain. To remove it, first, you need to remove the chain. After that, locate the pins that are on the overflow tube sides. You can then remove the old one by removing the pins.

After securing the new flapper, connect it to the chain. Then, safely attach the new part to the pins. If the chain of the new flapper is too long, it might cause a leak. To prevent this, trim it to a shorter length.

Crop Toilet Refill Tube

When the toilet tank’s refill tube is too long, it will overflow and cause the water to run out entirely. Fortunately, you can shorten it to minutes.

After lifting the container, use the cutting tools to shorten the tube. You should also cut the ends into tiny pieces to not over-shorten the line. Finally, connect the ends of the tube with the overflow clips.

After draining the tank completely, connect the supply line to the outlet valve. After accessing the valve, take out the refill tube. You don’t need to remove the entire pipe to cut the excess.

Frequently Asked Questions

Is It Normal to Hear Water Running Through Pipes?

It’s not unusual to hear running water going through the pipes, especially in older homes. When a plumbing contractor leaves the drainpipe exposed, this can cause the water to run through the lines. Even in modern homes, you can still hear running water when the water heater is on.

How Do I Stop My Water Pipes From Rattling?

To minimize noise, wrap pipes in foam. Ensure they are supported and have enough flex room to allow for expansion and contraction. Also, lowering the water pressure can help prevent a rattle.

When you did your house’s plumbing system, you made it run through the house’s walls, roof, and ceiling. However, this doesn’t apply to all houses as the pipe installation also delivers water to various parts of the house and directs it to the sewage system.

The supporting strap will secure it to the floor, wall, and ceiling when installing a pipe. If the belt gets loose, the line will eventually rattle.

How to Find a Leak?

If the toilets are not working, make sure that all your outside hoses are off. You may have left the water running to the pool or the new bushes you just planted or accidentally left the hose running to water the lawn.

Before determining if the water is running, you must check the various common causes. Then, go to the water meter and look at its dial.

There, you will see a small dial that has a leak indicator. If it is spinning, there is a problem with the water supply. A professional plumbing company will be able to diagnose the issue.


There are various reasons why water can constantly flow into your toilet. One of these is a leaky toilet flapper.

Aside from this, it can also appear because of various other issues such as improper positioning of the float and an oversized refill tube. If the problem is with the water heater, it’s best to call a professional.