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How to Replace a Toilet Fill Valve – Part 3

Bob Jackson
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by Bob Jackson

How to Replace a Toilet Fill Valve: Mount the new Fluidmaster fill valve in the toilet tank. This project is continued from How to Replace a Toilet Fill Valve – Part 2.

Brasscraft Toilet Connector Hose

The Brasscraft Toilet Connector hose (left) comes preassembled with the cone washer. The Fluidmaster Fill Valve kit provides the shank washer and cone washer (right) as a single unit:

Toilet Repair: Brasscraft Toilet Connector Hose and Fluidmaster Cone Washer
Toilet Repair: Brasscraft Toilet Connector Hose and Fluidmaster Cone Washer

I don’t need the Fluidmaster cone washer but I do need the shank washer. Separate the cone washer from the center of the shank washer by either cutting the four tabs or carefully pulling apart at the tabs.

The cone washer is separated from the shank washer:

Toilet Repair: Toilet Connector Cone Washer and Shank Washer
Toilet Repair: Toilet Connector Cone Washer and Shank Washer

Install the Fluidmaster Whisper Fill Valve

The height of the Fluidmaster Whisper Fill Valve is adjustable, just twist the threaded shank. I needed increase the height of the fill valve by about two inches as shown in the following photo.

Do not remove the lock ring. The lock ring holds the body of the fill valve on to the shank. Without the lock ring, the fill valve could pop off and you’ll have a fountain of water squirting out out of the toilet tank!

Toilet Repair: Fluidmaster Whisper Valve and Shank Washer
Toilet Repair: Fluidmaster Whisper Valve and Shank Washer

Slide the shank washer onto the threaded shank. The flat side goes against the valve and the beveled end faces away as shown to fit against the toilet tank. The purpose of the shank washer is to make a water tight seal against the bottom of the toilet tank.

Toilet Repair: Fluidmaster Whisper Valve with Shank Washer Installed
Toilet Repair: Fluidmaster Whisper Valve with Shank Washer Installed

The new Fluidmaster Whisper Valve and shank washer ready to be installed in the toilet tank:

Toilet Repair: Fluidmaster Whisper Fill Valve
Toilet Repair: Fluidmaster Whisper Fill Valve

Place the fill valve inside the tank and orient the valve body so the outlet nipple for the overflow tube is oriented towards the center of tank. Make sure the fill valve is not touching sides of the tank or the flush arm.

Toilet Repair: Install the Fluidmaster Toilet Fill Valve
Toilet Repair: Install the Fluidmaster Toilet Fill Valve

Reach inside the tank and hold the fill valve so it doesn’t turn and tighten the lock nut against the bottom of the tank. Notice that the Fluidmaster lock nut has generous “wings” to hand tighten. Hand tighten only – you only need to compress the shank washer for a watertight seal. If you over tighten the nut, you could crack the toilet tank.

Replace a Toilet Fill Valve: Install the Valve Lock Nut
Replace a Toilet Fill Valve: Install the Valve Lock Nut

This project is continued in How to Replace a Toilet Fill Valve – Part 4.

Take care,

Bob Jackson

Brasscraft Toilet Connector hosecone washerFluidemaster Whisper ValveFluidmaster toilet repair kithow to install a toilet fill valve
Bob Jackson
Bob Jackson
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