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Fire & Water - Cleanup & Restoration

How To Replace an Old Wax Gasket Under a Toilet

5/28/2020 (Permalink)

SERVPRO Logo. A leaking toilet is a common issue in homes. You can repair most problems alone, but professional help is useful.

There are many reasons for a leaking toilet, but the explanation is typically linked to the location of the leak. For example, a leak from a tank likely relates to a loose connection, but a leak from the bottom of the toilet is most likely because of an old wax gasket. While there are several water mitigation companies in Buckingham, PA, you can replace an old wax seal by following a straightforward process.

Shut off the water supply
Remove the toilet
Remove and replace the wax gasket
Reseat the toilet

Shut Off the Water Supply
Before you even think about replacing the wax ring causing your bathroom leak, shut off the water supply at the back of the toilet. You may also want to empty the toilet tank by flushing it. However, water may still leak out, so mitigate this problem by placing several towels across your bathroom floor.

Remove the Toilet
With the leaking toilet deprived of water, you can disconnect it from the floor. You can find two bolts on either side of the toilet, securing it to the floor. Remove the nuts and washers on these bolts. You can also disconnect the supply line from the back of the tank. Once you remove everything, lift the toilet from its position and set it aside.

Remove and Replace the Wax Gasket
By removing the toilet, you expose the wax gasket. Use a tool, such as a putty knife or screwdriver, to get under the gasket and lift it free of the floor. After removing the old ring, inspect the pipe for damage. If everything looks OK, clean the area and place the new gasket, pressing down to secure it.

Reseat the Toilet
With the new gasket in place, you can reseat the toilet. Place it over the bolts, reattaching the nuts to the base, and securing the supply line to the tank. With everything secure, turn the water back on and flush the toilet, checking for leaks.


A leaking toilet is a common issue in homes. You can repair most problems alone, but professional help is useful.

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