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Disconnect and Remove the Tank — Prepare Area and Remove the Toilet

Intermediate

Part of project

How to Replace a Broken Toilet Flange · Step 1 of 5

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In this video

Place a towel on the floor to catch any drips. Use an adjustable wrench to disconnect the water supply line from the bottom of the fill valve. Next, locate the two tank bolts underneath the bowl and use a wrench to loosen and remove the nuts. Once the bolts are loose, carefully lift the tank straight up and off the toilet bowl. Place the tank on a protected surface, such as a towel laid over the toilet seat.

Goal: Detach the toilet tank from the bowl

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

Used in this video

  • Adjustable Wrench (Tool Type: Hand Tools, Wrench Type: Adjustable wrench)Loosening the water supply line nut and the tank bolt nuts.
  • Towel (Material: Fabric)Protecting the floor from water and providing a soft surface to place the tank on.
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FAQs

How long does a toilet flange replacement typically take for a DIYer?

This intermediate DIY project usually takes between 2 to 4 hours to complete, assuming no major complications. Factors like severely rotted subfloor or rusted bolts can extend the timeline, so allocate extra time if you anticipate these issues.

What are the absolute essential tools and materials I need for this job if I don't have everything on the list?

You will absolutely need an adjustable wrench, screwdriver, putty knife, and a level. For materials, a new DANCO Perfect Seal Toilet Wax Ring with Bolts is critical, and a new toilet supply line is highly recommended to prevent future leaks.

What are the most important safety precautions I should take when replacing a toilet flange?

Always shut off the water supply to the toilet and flush it to drain the tank and bowl completely before starting. Wear gloves to protect against unsanitary conditions, and use caution when lifting the toilet as it is heavy and can be awkward, potentially causing back strain or damage.

What's a common mistake beginners make when installing a new flange, and how can I avoid it?

A common mistake is not ensuring the new flange is level and at the correct height, flush with the finished floor. This can lead to an improper seal with the wax ring and subsequent leaks. Use shims if needed to achieve a perfectly level and secure installation.