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Remove Old Fill Valve — Remove the Old Fill Valve

Beginner2 hours

Part of project

Fix Leaky Toilets: A Step-by-Step Guide to Replacing Your Fill Valve · Step 3 of 6

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In this video

Using an adjustable wrench or channel-lock pliers, loosen and unscrew the plastic locknut on the underside of the tank that holds the old fill valve in place. You will also need to disconnect the water supply line coupling nut from the fill valve's threaded shank. Once the locknut is off, lift the entire old fill valve assembly straight out of the tank.

Goal: Take the old fill valve out of the toilet tank

Used in this video

  • Adjustable Wrench (Tool Type: Adjustable wrench, Power Source: Manual)Loosening the locknut that secures the fill valve to the tank and the water supply line coupling.
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FAQs

My new fill valve is leaking where it connects to the water supply line. What should I check?

First, ensure the connection is hand-tightened, then gently snug it with your adjustable wrench, being careful not to overtighten and strip the threads. Also, check that the rubber washer inside the coupling is properly seated and not pinched or missing; a new washer may be needed if it's damaged.

Is replacing a toilet fill valve truly a beginner-friendly project, and how much time should I set aside?

Yes, this project is very beginner-friendly and perfect for a first-time DIYer. Most people can complete the entire process, including preparation and testing, within 1 to 2 hours. Taking your time and carefully following each step will help ensure a successful repair.

What crucial safety precautions should I take before starting this toilet repair?

Always begin by turning off the water supply to the toilet, usually via a small shut-off valve at the wall or floor. After turning it off, flush the toilet to empty the tank as much as possible to minimize water spills when you disconnect lines and remove the old valve.

Besides an adjustable wrench, are there any other tools I might need for this project?

An adjustable wrench, like the Husky 12 in. Adjustable Wrench, is the primary tool you'll need. You might also find a bucket helpful to catch any residual water from the tank or supply line, and a sponge or old towel for easy cleanup of small spills.

Transcript
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water next with an adjustable wrench unscrew the mounting nut that holds the old assembly in place then take out the old valve to prep your new assembly

Auto-generated transcript. May contain errors.