How to Unscrew a Fluidmaster

The Fluidmaster fill valve attaches to your toilet tank much like any other valve. The lower end of the Fluidmaster valve has threads which are inserted through the bottom of the toilet tank. A nut screws onto the threads to secure the Fluidmaster to the toilet. Unscrewing the Fluidmaster can be frustrating, because the valve assembly is composed of two parts that ratchet up or down for adjustment. Unscrewing the Fluidmaster from the tank requires preventing the bottom half of the valve from turning while loosening the securing nut.

Things You'll Need

• Towels
• Wrench
• Adjustable wrench

Instructions

1. Turn off the water supply at the valve behind the toilet. Take the lid off the toilet tank and set it on a flat surface away from the toilet.

2. Flush the toilet and hold the handle down, allowing as much water as possible to drain from the tank.

3. Soak up any remaining water in the toilet tank with towels. Turn the nut securing the water supply line to the bottom of the Fluidmaster valve counterclockwise with a wrench. Pull the line away from the Fluidmaster valve threads.

4. Reach inside the toilet tank and hold the bottom of the valve stem securely in your hand. Loosen the nut under the toilet tank securing the Fluidmaster with an adjustable wrench. If the nut will not turn, hold the nut with the wrench and unscrew the Fluidmaster counterclockwise with your hand.

5. Pull the Fluidmaster out of the toilet tank.

Tips & Warnings

• Adjust the height of the Fluidmaster by holding the top half of the valve and turning the lower half clockwise to lengthen or counterclockwise to shorten.

• Simply reverse the steps for removal to install a Fluidmaster.

References

• Fluidmaster: Fill Valve Instruction Manual