Why your toilet wobbles and how to fix it permanently
In short: A loose toilet is more than a nuisance; it often signals a compromised seal. To fix the wobble, you must look beneath the porcelain to inspect the wax ring and the floor's level, ensuring a stable and leak-free connection to your home's plumbing.
When a toilet shifts or wobbles, the culprit is often a deformed wax ring. This component creates the airtight and watertight seal between the toilet and the flange. Because the toilet must be removed to address the wobble, plumbing experts like Richard Trethewey recommend using the opportunity to inspect the toilet flange for damage and to check if the floor itself is level. If the floor is uneven, shims must be placed underneath the unit to provide stability. It is also vital to verify that the floor is level before proceeding. If the surface is uneven, you will need to use shims to stabilize the base.
The repair process begins by isolating the water supply and draining the bowl completely using a sponge and bucket. Once the water line is disconnected, the toilet is lifted from the floor to allow for a thorough inspection of the underlying components. After removing the old wax ring with a putty knife, a new wax ring and new closet bolts should be installed on the flange to ensure a secure fit. First, shut off the water supply and flush the bowl until it is empty. You can then use a sponge and a bucket to remove any leftover water.
Securing the unit requires a specific technique to prevent uneven pressure. After placing the toilet back onto the new closet bolts, you should alternate tightening the nuts on each side. Once the toilet is firmly connected, any excess length on the bolts can be removed with a hacksaw and finished with decorative cap covers. This methodical approach ensures the toilet remains steady and the plumbing seal remains intact. Finally, use a hacksaw to cut off any protruding bolt ends. You can then finish the look by placing cap covers over the bolts.
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Sources
- Summary by Intellect · source: How to Fix a Wobbly Toilet | Ask This Old House
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