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How to Remove a Toilet Tank?

Published in Toilet Removal 4 mins read

Removing a toilet tank is a straightforward task, often necessary for repairs, replacement, or when preparing to remove the entire toilet. The process primarily involves disconnecting the water supply, draining the tank, and carefully unbolting it from the toilet bowl.

Essential Tools for Toilet Tank Removal

Before you begin, gather the following basic tools to ensure a smooth removal process:

  • Adjustable Wrench or Pliers: For disconnecting the water supply line and loosening tank bolts.
  • Flathead or Phillips Screwdriver: To hold bolt heads inside the tank while turning nuts (if bolts spin).
  • Bucket or Small Pan: To catch residual water from the supply line and tank.
  • Sponge or Towels: For soaking up any remaining water in the tank and cleaning up spills.
  • Safety Gloves: To protect your hands.

Step-by-Step Guide to Removing a Toilet Tank

Follow these steps to safely and efficiently remove your toilet tank:

1. Turn Off the Water Supply

Locate the shut-off valve on the wall or floor behind your toilet. Turn the handle clockwise as far as it will go to completely stop the water flow to the tank. This is a critical first step for any toilet repair.

2. Flush and Drain the Tank

Flush the toilet to empty most of the water from the tank into the bowl. Hold the flush handle down until as much water as possible has drained. Use a sponge or towel to soak up any remaining water from the bottom of the tank. Ensure the tank is as dry as possible to prevent spills.

3. Disconnect the Water Supply Line

Beneath the toilet tank, you'll find the water supply line connected to the fill valve. Using your adjustable wrench or pliers, carefully loosen the nut that secures the supply line to the tank. Have a small bucket or towel ready to catch any residual water that may drain from the line. Once disconnected, bend the supply line out of the way.

4. Unbolt the Tank from the Bowl

The toilet tank is typically secured to the toilet bowl by two or three bolts passing through the bottom of the tank.

  • Locate the nuts on these bolts underneath the tank, accessible from the back of the toilet bowl.
  • Use your adjustable wrench to loosen and remove these nuts.
  • In some cases, the bolts might spin freely. If this happens, you may need to use a screwdriver to hold the bolt head steady from inside the tank while you loosen the nut underneath.
  • Ensure all washers (metal and rubber) are also removed.

5. Lift and Remove the Tank

With the nuts and washers removed, the tank is now detached from the bowl. Carefully lift the toilet tank straight up and off the bowl. The tank can be heavy, especially if it still contains some water, so lift with caution. Place the tank in a safe, stable location, ideally on a tarp or old towels to catch any drips.

What if You Need to Remove the Entire Toilet?

If your project extends beyond just the tank and requires the complete removal of the toilet (both tank and bowl) from the floor, there are additional steps to follow once the tank has been removed. After removing the tank, you will need to disconnect the toilet bowl from the floor flange.

To do this, remove the nuts that secure the toilet bowl to the floor. These nuts are typically located at the base of the toilet, often covered by decorative caps. Once these nuts are removed, you will need to gently rock the toilet side to side to break the wax seal that forms a watertight connection between the toilet base and the drainpipe. Once the wax ring is broken, you can then lift the bowl up and out of the way. Be prepared for some residual water in the bowl and ensure you have rags or towels to contain any mess.

Key Considerations for Toilet Removal

Component Action Importance
Water Supply Turn off completely Prevents flooding and makes the job manageable
Tank Bolts Remove carefully Securely attaches tank to bowl; prone to corrosion
Wax Ring Inspect/replace if removing entire toilet Critical for a watertight seal to the drainpipe
Proper Lifting Use proper body mechanics To avoid injury, as toilet components can be heavy

Removing a toilet tank is a manageable task for most DIY enthusiasts. By following these steps, you can effectively detach the tank, making way for repairs, replacement, or further removal of the toilet bowl.