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Remove old Fluidmaster toilet 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

Unscrew the white nut securing the fill valve to the bottom of the tank. The fill valve can then be removed.

Goal: Detach fill valve from the tank.

  • The fill valve nut should have been hand-tightened only. Avoid over tightening during reinstallation.
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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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came out okay the next step is see this white plastic nut that's right here that's what's securing the fill valve to the tank so we just need to unscrew that and you again it should be hand tightened only see so it should just come right off set that aside and guess what now see that'll let some of the rest of that water out now if you vacuumed the water out you wouldn't have to deal with any of this but i'm just showing you this way because most di wires are going to do it this way now that you've removed the plastic nut and the water's all drained out guess what it's all loose you can pull your fill valve up and out now so your fill valve is now free to move about the country you can remove it out of there

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