With the tank removed, you can now access all the old components. Pull off the large, spongy gasket (often called a spud washer) from the threaded flush valve outlet on the bottom of the tank. Then, pull the old bolts and their rubber washers out from inside the tank. Using a rag and maybe a plastic scraper, thoroughly clean the area on the bottom of the tank around the flush valve outlet and the corresponding surface on the toilet bowl where the gasket sits. Any dirt or residue can prevent a good seal. Take your new bolts from the tank-to-bowl kit, place a new rubber washer on each, and insert them down through the holes from inside the tank. Finally, press the new large tank-to-bowl gasket firmly onto the flush valve outlet on the tank's bottom.
You're viewing a step from: How to Fix a Leaking Toilet Tank-to-Bowl Connection
This project involves stopping a water leak between the toilet tank and the bowl. The process includes turning off the water supply, draining the toilet, detaching the tank from the bowl, replacing the old, faulty tank-to-bowl gasket and bolts, and then reassembling the toilet and testing for leaks.
Frequently Asked Questions
How long will this DIY project take for a beginner, and what's the approximate cost?
This is a beginner-friendly project that typically takes 1-2 hours to complete, depending on your comfort level with plumbing. The main expense is a new tank-to-bowl gasket and bolt set, which usually costs less than $20.
What are the essential tools and materials I'll need for this repair, beyond what's listed?
You'll primarily need an adjustable wrench, like the Crescent 12 in. Chrome Adjustable Wrench, a flat-head screwdriver, a bucket (e.g., Unger 6 Gal. Heavy-Duty Plastic Bucket), and plenty of absorbent rags or towels, such as THE CLEAN STORE Cleaning Terry Towels. Work gloves are also highly recommended for comfort and hygiene.
What are the most common mistakes beginners make when fixing a toilet tank-to-bowl leak?
A common mistake is overtightening the tank bolts, which can crack the porcelain tank or bowl; tighten them only until snug, then give an additional quarter turn. Another error is not properly seating the new gasket, leading to immediate leaks, so ensure it's flat and centered.
Are there any specific safety precautions I should take before starting this project?
Always shut off the water supply to the toilet completely using the shut-off valve behind or beneath the toilet before beginning any work. Ensure you have a bucket ready to catch residual water when disconnecting lines and draining the tank, and wear work gloves to protect your hands.
How to Fix a Leaking Toilet Tank-to-Bowl Connection
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Step 1: Shut Off Water and Drain Toilet
Step 1: Shut Off Water and Drain Toilet
Step 1: Shut Off Water and Drain Toilet
Step 2: Disconnect Water Supply Line
Step 2: Disconnect Water Supply Line
Step 2: Disconnect Water Supply Line
Step 3: Unbolt and Remove the Tank
Step 3: Unbolt and Remove the Tank
Step 3: Unbolt and Remove the Tank
Step 4: Replace Old Gasket and Bolts
Step 4: Replace Old Gasket and Bolts
Step 4: Replace Old Gasket and Bolts
Step 5: Re-mount and Secure the Tank
Step 5: Re-mount and Secure the Tank
Step 5: Re-mount and Secure the Tank
Step 6: Reconnect Water and Test
Step 6: Reconnect Water and Test
Step 6: Reconnect Water and Test
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