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Remove the Toilet Tank — Disconnect and Remove the Toilet

Intermediate

Part of project

How to Remove an Old Toilet Flange · Step 2 of 7

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In this video

Place a small bucket or towel under the water supply line connection to catch any drips. Use a wrench to loosen and disconnect the water supply line from the bottom of the fill valve. Next, locate the two tank bolts under the rim of the toilet bowl. Use a wrench or socket to unscrew the nuts from these bolts. Once the nuts and washers are removed, carefully lift the toilet tank straight up and off the bowl. Place it on a protected surface like a towel.

Goal: Detach the toilet tank from the toilet bowl.

  • The tank is made of porcelain and can be heavy and fragile. Handle it with care to avoid dropping or cracking it.

Used in this video

  • Wrench (brand: unknown, Wrench Type: Open-end)Loosening the supply line nut and the tank bolt nuts.
  • Towel (brand: unknown, Towel Material: Absorbent cloth towel)Protecting the floor and providing a soft surface to place the tank on.
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FAQs

How difficult is it to remove an old toilet flange, and how long should I expect it to take?

Removing an old toilet flange is generally considered an intermediate-difficulty DIY project. Expect it to take 2-4 hours, though this can vary significantly based on your experience, the flange material (cast iron is more challenging), and how easily the old fasteners come out. Patience and the right tools are key.

What are the essential safety precautions I need to take when removing a toilet flange?

Safety is paramount for this project. Always wear safety glasses and work gloves to protect against debris and sharp edges. Ensure the water supply is shut off and the toilet is completely drained before beginning. If working with cast iron, be cautious of flying fragments and use appropriate hearing protection when chiseling.

Do I absolutely need specialized tools like an inside pipe cutter or a cold chisel and sledgehammer for this project?

Yes, for PVC/ABS flanges, an inside pipe cutter (like The Plumber's Choice 1242R) is highly recommended to make a clean, safe cut without damaging the main drain pipe. For cast iron flanges, a cold chisel (e.g., Dasco Pro G419) and sledgehammer (like Estwing MRF3LB) are often necessary to break the brittle material without damaging the subfloor or surrounding pipe.

What's the most common mistake DIYers make when removing a toilet flange, and how can I avoid damaging the drain pipe?

The most common and costly mistake is damaging the drain pipe itself while removing the flange. To avoid this, always exercise caution and precision. When cutting PVC/ABS, ensure the inside pipe cutter is properly adjusted to cut only the flange. When breaking cast iron, direct your force carefully with the chisel to fracture the flange, not the underlying pipe or subfloor.

Remove the Toilet Tank — How to Remove an Old Toilet Flange (Step 2, Video 3) | Stesso