How To Remove Plastic Nut From Toilet Tank

The toilet seat is made up of several movable and immovable parts. The toilet tank has two major components: the toilet flush valve, which enables water to enter the bowl to flush, and the fill valve, which lets water enter the tank after the flush. Other minor parts include the handle, handle arm, float adjustment screw, fill tube, and float arm, flapper, overflow tube, and float.

Locknuts are used to hold the content of the tank from below. They are used in a toilet to secure the fill valve in the toilet tank. The locknut is located slightly above where the plastic coupling attaches to the tank.

To make the job easy, it is recommended that you empty the water in the tank.

Do you know how to remove the flush valve lock nut? Worry not, this article serves to provide you with the necessary information for this particular task. 

How To Remove The Plastic Nut From The Toilet Tank

Detailed instructions on how to remove the plastic nuts from the toilet tank without complications are listed below:

Step 1

Shut the water supply in the plumbing system. 

Water flows into the tank from the plumbing system through the supply valve. As the water rises, a float on the supply valve increases with it. When it gets to the supply valve, the toilet tank stops is essential to halt the operation of the supply valve.

Locate the supply valve. To locate the supply valve, follow the water supply line from the underside of the tank to where it meets the supply valve on the wall. Switch off the water supply from the supply valve on the wall.

It might be challenging to use your hand to switch off the water; it is usually very tight. It would be best if you used a pair of pliers.

Step 2

The toilet tank has a removable lid that can be easily removed. Remove the cover and set it aside. The inner parts of the toilet tank are already exposed. 

It is crucial to clear the water in the tank. Twist the handle to flush the toilet. Watch as the tank empties. Mop out the remaining water in the tank with a towel or a sponge. It is vital that we can create a dry workspace in the tank.

Step 3

Is the toilet tank completely water-free? If yes, go ahead and unscrew the plastic coupling connecting the water supply hose to the bottom of the tank. 

You might place a rag beneath the toilet tank to take care of the water that might fall out of the plastic coupling. This is to ensure that the toilet does not get messy.

Step 4

Now that the plastic coupling has been removed, the plastic lock nut should be visible.  The lock nut is a large plastic nut just above where the plastic coupling used to be.

Remove the lock nut by turning it with your pliers. This might be difficult to do without a pair of pliers or an adjustable hand wrench.

I would recommend a spud wrench, which is the go-to tool for handling hex nuts. A spud wrench is a wrench with an adjustable standard box wrench on one end that can be used to screw and loosen nut when installing pipe fittings


Can you remove your plastic nut from the toilet tank by yourself now? If you still have problems with it, perhaps you should go through the article again. You may have missed something.

The locknut is relatively easy to remove from the plastic tank. You don’t have to call the plumber every time

by Karens
Karens is a busy mother of two and addicted to studying, researching bathroom and toilet decoration.

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