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How to Replace a Toilet Fill Valve

There are few things that are more embarrassing than realizing a toilet doesn’t flush right after you’ve used it. At least that’s the case if you’re a guest at someone’s home. And while no one is going to walk around with a spare fill valve in their hands, knowing how to replace it is a useful skill.

How to Know If Your Toilet Fill Valve Needs to be Replaced

Generally, you should be replacing your toilet fill valve about every 5 years. If you haven’t been doing so, the parts will start wearing out, and you’ll likely experience the following from your toilet:

  • Water keeps running
  • A screeching sound
  • Toilet won’t flush or flush completely
  • It takes forever for the tank to refill

The good news is that replacing your valve is a relatively simple process. You can purchase a new one at any hardware store, and follow the instructions below.

How to Replace Toilet Fill Valve in 8 Steps

In the spirit of helping you keep your toilets in optimal condition, here are 8 steps to replace a fill valve:

Step 1. Turn off the water supply. The toilet is likely the one place in your home where everyone knows where the water supply valve is located. This is the turn knob on the wall behind the toilet. Make sure it’s off before you begin with repairs.

Step 2. Take off the lid of the tank. This step is self explanatory.

Step 3. Flush the toilet. You’ll need the tank empty to remove the old valve and install the new one. Once the water is flushed, soak up the remaining portion with sponges or towels, until the tank is completely dry.

Step 4. Unscrew the water hose from the tank. Use a wrench to loosen the lock nut holding the water hose to the bottom of the tank. When it comes off, pull it apart from the bottom of the toilet’s fill valve.

Step 5. Remove the existing fill valve. Place an empty container under the hole that connects the water hose to the fill valve. Reach to the base of the valve and pull up the lock ring. Slowly pull the valve off its base and remove the refill tube from the overflow pipe.

Step 6. Adjust the height of the new fill valve. Toilets vary in size. Prior to installing the new fill valve, adjust it to the correct size for your tank.

Step 7. Install the new valve. Insert its base into the hole where the old valve was located. Secure it by screwing the lock nut under the tank. Tighten it as much as possible. Insert the refill tube into the same overflow pipe where the old refill tube was located, then snap down the lock ring under the valve.

Step 8. Reattach the water supply hose. Once this step is completed, turn the water supply back on and flush the toilet to make sure the water levels are back to normal. The last thing you want is a guest to use your toilet and realize that it isn’t flushing.

Toilet Repair in South Florida

If you have already replaced your fill valve and are still having toilet issues, let us help you. We provide services in Broward, Palm Beach, and St. Lucie.

Contact us today to learn more or schedule an appointment online.

Broward: (954) 800-2858
Palm Beach: (561) 701-8274
St. Lucie: (772) 879-5656

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