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Drain the Toilet Tank and Bowl — Shut Off Water and Drain the Tank

Beginner2 hours

Part of project

How to Replace a Toilet Fill Valve and Flapper · Step 1 of 6

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In this video

To prepare the toilet for removal, first shut off the water supply by turning the valve behind the toilet clockwise. Remove the tank lid and flush the toilet to empty the tank. Disconnect the water supply line from the bottom of the tank. Use a sponge to soak up any remaining water in the tank, wringing it out into a bucket. Then, use a toilet plunger in the bowl to force out as much trapped water as possible. Finally, use the sponge again to remove the last of the water from the bowl.

Goal: Remove all water from the toilet

Used in this video

  • SpongeSoaking up residual water from the toilet tank and bowl.
  • Bucket (Bucket Size: 2 gallon)Wringing out the sponge and collecting water.
  • Toilet Plunger (Tool Type: Plumbing Tools, Plunger Type: Flange Plunger)Forcing trapped water out of the toilet bowl's S-trap.
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FAQs

What are the most important safety precautions I should take when replacing a toilet fill valve and flapper?

Always start by turning off the water supply to the toilet completely using the shut-off valve behind the toilet. Flush the toilet to drain the tank and bowl as much as possible. Have towels and a bucket ready to catch any residual water, and consider wearing gloves for hygiene and grip.

The project is rated 'beginner' and '2 hours.' Is this realistic for someone who has never done plumbing before?

Yes, this project is genuinely beginner-friendly. It primarily involves unscrewing and screwing on nuts by hand or with simple tools. While 2 hours is a good estimate, allow yourself a bit more time if it's your first time to read instructions carefully and avoid rushing. It's a great project to build confidence in DIY plumbing.

Do I need the specific Husky wrench and Channellock pliers mentioned, or are other adjustable wrenches sufficient?

You do not need those exact brands. Any good quality adjustable wrench (10-12 inches) will be essential for securing the fill valve nut. Slip-joint pliers are very helpful for removing stubborn connections but often an adjustable wrench can handle most tasks. Ensure your tools are in good working order.

After replacing the fill valve and flapper, my toilet is still running or leaking. What should I check first?

First, ensure the fill valve's water level adjustment is set correctly; the water should stop filling about 1 inch below the top of the overflow tube. Next, check that the flapper seats perfectly over the flush valve opening and that its chain isn't too tight or too loose, which could prevent a proper seal. Also, double-check that the fill valve mounting nut underneath the tank is tightened sufficiently but not overtightened.