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Remove Old Fill Valve — Remove the Old Fill Valve

Beginner2 hours

Part of project

Fix Toilet Flush & Refill: Valve & Flapper Guide · Step 2 of 5

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In this video

Using an adjustable wrench, loosen the nut connecting the water supply line to the fill valve shank underneath the tank. Once loose, unscrew it by hand. Then, unscrew the large plastic locknut that secures the fill valve to the tank. Lift the old valve assembly out from inside the tank. Use a small tool to pick out the old fiber washer from the supply line fitting.

Goal: Remove Faulty Component

  • Be gentle when loosening the nuts to avoid cracking the porcelain tank.

Used in this video

  • Adjustable Wrench (Wrench Type: Adjustable wrench) — To loosen the nuts on the water supply line and the fill valve.
  • Dental Pick · optional — To easily remove the old fiber washer from the fitting.
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FAQs

Is replacing a toilet fill valve and flapper truly a beginner-friendly DIY project, and can I really complete it within the estimated 2 hours?

Yes, this is a very common beginner-level DIY project. The most challenging part is often working in tight spaces. Most DIYers can complete it within 1-2 hours, especially if they have the replacement parts readily available.

Besides an adjustable wrench, are there any other tools or specific materials recommended to make this job easier or prevent issues?

While an adjustable wrench is the primary tool, a utility knife can be helpful for trimming the refill tube to the correct length. A bucket for any residual water and the specified HDX Multi-Purpose Sponge for thoroughly drying the tank are also highly recommended to prevent mess.

What are the most common reasons for leaks after installing a new fill valve or flapper, and how can I prevent them?

Leaks commonly occur from an improperly tightened water supply line connection or a misaligned washer on the new fill valve shank. Ensure all connections are hand-tightened first, then given a quarter to half turn with the adjustable wrench, and verify that the fill valve gasket is seated correctly against the tank bottom.

What crucial safety precautions or preparatory steps should I take beyond just turning off the water supply?

Always turn off the water supply behind the toilet and flush to drain the tank completely before beginning. Use the sponge to remove all remaining water from the tank to prevent spills. It's also a good idea to wear gloves and have adequate lighting to clearly see all connections.

Transcript
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water out. Looks like the old days when you used to use a sponge. So we'll get that nut undone as well. See a little bit of water came out. We'll get all that. Get the fibre washer out that's important because we'll have to replace that of a new one. New ball valve

Auto-generated transcript. May contain errors.