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What Causes Toilet To Run Intermittently

A toilet that cuts on and off by itself, or runs intermittently, has a problem that plumbers call a “phantom flush.” The cause is a very slow leak from the tank into the bowl. This problem is almost certainly caused by a bad flapper or flapper seat.

How do you fix a toilet that runs randomly?

Solution 1: Replace the Flapper Use a sponge to clean up any leftover water and then unhook the flapper and replace it with a new one. Turn the water supply back on and test. If the toilet randomly runs or the tank starts filling by itself, it’s a sign that the flap is failing.

Why does my toilet randomly run for a few seconds?

Your toilet randomly runs on and off for a few seconds due to a problem called “phantom flush”. This is caused by a slow water leak from the tank into the bowl and is often the result of a sediment build-up on the flapper (aka “flush valve seal”) or a bad flapper seat.

Why is my toilet still running after replacing flapper?

The most likely cause is a leaking flush valve. Usually such a leak is around the mouth of the flush valve where the flapper is supposed to make a good seal. Lift the flapper and run your finger around the edge of the opening where water spills through the flush valve and into the bowl.

Why does my toilet keep filling up every few minutes?

If your toilet keeps refilling at 15-minute intervals, it probably has a leak. In the vast majority of cases, the problem is with the flapper, which is the rubber seal between the tank and the bowl. There’s a more serious possibility, however, and that is that the tank is leaking. If so, you’ll see water on the floor.

Is a constantly running toilet an emergency?

A toilet that keeps running after its last use may seem like a minor annoyance (as long as it’s not flooding). However, the amount of water a malfunctioning toilet wastes will quickly add up. Even though a running toilet may not seem like an emergency, you need to get the problem fixed as soon as you can.

Can you put Vaseline on a toilet flapper?

The flapper in the toilet opens and closes to let the water out of the tank. One easy, but temporary fix to make rubber toilet parts supple again is vaseline. The toilet must be drained and dried for this to work. Then, vaseline can be rubbed on the flapper and it’s connecting washer until they become soft.

How do you reset a toilet flapper?

Either one is usually easy to fix. Turn off the water valve and hold down the flush handle until the tank is empty. Adjust the chain holding the flapper to the flush handle. Clean the inlet holes in the toilet bowl if you can’t stop the flapper from sticking by adjusting the chain.

Why does my toilet cistern keep filling up?

If your cistern is constantly filling the most common problem is a faulty float valve or a poorly adjusted float arm. If your float valve is broken it means that the water level is not rising enough to shut off the water flow.

How often do toilet flappers need to be replaced?

Some drop-in bowl cleaners are also hard on the rubber component of a flapper. As the flapper deteriorates it allows leakage. Although it is not something many of us think of as needing replacement on a routine basis, in general, a toilet flapper should be replaced every three to five years.

What causes toilet flapper leak?

A dirty flapper can cause a leak due to algae or other minerals not allowing the flapper to properly close. If the flapper is dried out, warped, cracked, or pitted, then you’ll need to replace it. Check for cracks in the flush valve (the piece the toilet flapper seals against).

Why is toilet flapper not closing?

The typical causes for a toilet flapper won’t close after flushing is the chain is short, flapper hinges mineral build-up, the air stuck in the flush valve, and the weight of the flapper. To fix this problem need to replace the flapper or chain adjustment.

How do I know which toilet flapper?

Look at the flush valve drain opening at the bottom of your tank. If the opening looks about the size of a baseball or orange, you need a 2″ flapper. If the opening looks about the size of a softball or grapefruit, you need a 3″ flapper.

Can a toilet fill valve cause toilet to run?

On occasion, your toilet’s fill valve may have a leak that is causing your toilet to run continuously. To see if your fill valve has a leak, flush the toilet and lift up the float arm while the tank is refilling itself to stop the water.

Should I be worried about a running toilet?

Beyond the astronomical water bills running toilets have the power to produce, they can also cause damage to the home if water is actually leaking out of the bowl or tank. Toilet leaks can sometimes be very subtle. In some instances, you may not actually hear or see water leaching out of the toilet.

Can a running toilet cause flooding?

Running Toilets Are a Flood Risk When water continuously runs through your system, your tank will eventually overflow and result in the failure of your home’s drain field.

How long do toilet flappers last?

The average toilet flapper lasts about 4 to 5 years. It is important that you replace your toilet flapper when needed to prevent damaging leaks.