How to Replace a Fluidmaster Valve How to Replace a Fluidmaster Valve

What You'll Need
Fluidmaster valve kit
Towels
Slip Joint pliers
Rag
Plumbers tape

The fluidmaster valve in a toilet tank is bound to fail eventually and it is quite normal to just replace the valve rather than spend a lot of time trying to repair it. The job requires you to empty the tank of water so you can get to the valve through a hole at the bottom. It is easy enough to replace and you can purchase the valve at most good hardware outlets.

Step 1 – Remove the Toilet Tank Lid

The first step when you want to replace the fluidmaster valve is to take off the lid of the toilet tank and place it carefully somewhere else in the room. Next you should locate the water supply that is going to the toilet. Once located, shut the valve off behind the toilet. This will mean you can empty the water and get to the valve. Turn the handle of the valve in a clockwise direction to ensure that the water stops going to the tank. To make sure that the water is not flowing any more, flush the toilet until most of the water has gone. You will need to use the towel to mop up any excess water.

Step 2 – Turn the Water Line Connector

Next, you will need to turn the water line connector in a counter-clockwise direction using a pair of pliers. The line should connect to the bottom of the tank so this is where you will need to turn. You will then need to remove this from the valve.

Step 3 – Remove the Nut at the Bottom of the Tank

There is a nut at the bottom of the tank that keeps the valve attached to the tank. This needs to be loosened and removed with the pliers and the valve then taken out of the tank.

Step 4 – Clean the Hole Where the Valve is

As soon as you have removed the valve from the tank you should clean the hole where it was situated with a rag to get rid of any dirt that has built up. This will mean that you have a clean area to work in and to avoid further leaking problems.

Step 5 – Replace with a New Valve

Taking your new fluidmaster valve, put this one into the hole where the other one was removed from. You should be able to twist the valve into place as required to adjust the height.

Step 6 – Secure the Nut

Once the new valve is in place, secure it there with the use of a nut again. This will ensure that the valve is again tight at the bottom of the tank.

Step 7 – Turn the Water On

If you have followed the steps to replace the fluidmaster valve then you should now be able to test the toilet to ensure that this has worked correctly. Turn on the water and check where the valve is for any leaks. As the tank fills up again, there should be no problems with this or anything else. Once you are satisfied that the valve is correctly fitted and is functioning as it should be, replace the lid of the toilet tank once more and flush again.

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