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Turn Off Water and Drain Tank — Shut Off Water Supply & Empty Tank

Beginner2 hours

Part of project

Fix Toilet Flush & Refill: Valve & Flapper Guide · Step 1 of 5

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In this video

Locate the water supply shut-off valve on the wall behind the toilet. Turn the valve handle clockwise until it is fully closed to stop water from entering the tank. Next, remove the tank lid, set it aside safely, and flush the toilet to drain the water from the tank. Use a towel or sponge to soak up and remove all remaining water from the bottom of the tank.

Goal: Prepare the tank for disassembly

  • Ensuring the tank is completely dry will prevent water from spilling onto the floor during the repair.

Used in this video

  • Towel or Sponge (Tool Type: Cleaning tools) — Soaking up excess water from the toilet tank.
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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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The first step is to actually turn the water supply off. Pretty much every house is going to look just like this. Well, yet the deal has turned this clockwise and the water is off. This means that we can take the lid of the toilet off, flush it, and now the toilet tank will not refill. We want it to be empty so you can take all these parts out. The only remaining part at this point is to get a towel or a sponge to soak up all the rest of this water so that it's dry, and we can work with it. All right, so we've managed to soap, it's not most of the water up here, for an obvious reason we're going to take this part out here, you obviously don't want water splashing out all over the floor when you're through. So make sure the tank is completely dry, and you're not going to have any little surprises when you take this part out.

Auto-generated transcript. May contain errors.