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Reinstall Tank and Connect Water — Re-mount and Secure the Tank

Beginner

Part of project

How to Fix a Leaking Toilet Tank-to-Bowl Connection · Step 5 of 6

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In this video

Carefully place the refurbished tank back onto the toilet bowl, aligning the new tank bolts with the holes in the bowl. From underneath, install the washers and nuts onto the bolts. Tighten the nuts alternately and evenly until the tank is secure and does not wobble. Reconnect the water supply line to the new fill valve. Turn the water supply back on using the shut-off valve.

Goal: Secure the tank to the bowl and restore the water supply

  • Tighten the tank bolts evenly on both sides to prevent the tank from sitting crooked, which can cause leaks or stress fractures.

Used in this video

  • Adjustable Wrench (Tool Type: Hand Tools, Wrench Type: Adjustable wrench)Tightening the tank bolts and water supply line.
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Korky Toilet Repair

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FAQs

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.

Reinstall Tank and Connect Water — How to Fix a Leaking Toilet Tank-to-Bowl Connection (Step 5, Video 2) | Stesso