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Attach and Adjust the Chain — Inspect and Adjust the Trip Chain/Lever

Beginner

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Fix a Toilet That Won't Flush: Troubleshooting Guide · Step 2 of 3

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Connect the clip on the new chain to the flush lever arm. With the flapper seated on the drain, pull the chain straight up to remove most of the slack. You want to leave only about a half-inch of slack in the chain. Hook the appropriate chain link onto the clip to set the length. This ensures the flapper lifts properly during a flush but also drops and seals completely when the handle is released.

Goal: Connect the flapper chain to the flush lever and set the correct length

  • It's better to attach the clip to the handle arm first, then determine the correct chain length.
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FAQs

How difficult is it to fix a toilet that won't flush, and how long does it usually take?

This is typically a beginner-level DIY repair, making it very accessible. Most issues, like adjusting the chain or water level, can be fixed in 10-20 minutes. Replacing a flapper might take slightly longer, around 30 minutes, especially for first-timers, but is still straightforward.

What essential tools do I need for this toilet repair, beyond the cutting pliers mentioned?

Besides the Angled Head Diagonal Cutting Pliers for chain adjustment or replacement, you'll primarily need a good pair of waterproof gloves for hygiene. A sponge or old towel can be useful for drying the tank if you replace the flapper, and a bucket might be handy to catch any remaining water.

Are there any important safety precautions I should take before starting this repair?

Always turn off the water supply valve behind the toilet before working inside the tank to prevent accidental overflows. Wear gloves to maintain hygiene, as toilet tanks can harbor bacteria. Avoid using harsh chemicals to clean inside the tank, as they can damage components.

I've adjusted the chain, and the water level is correct, but my toilet still flushes poorly or runs constantly. What else could be wrong?

If the chain and water level are correctly adjusted, the issue is likely with the flapper itself. Even if it doesn't look visibly damaged, an old, stiff, or ill-fitting flapper can cause leaks and poor flushing. Replace the flapper to ensure a tight seal and proper water release for optimal function.

Transcript
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Simple fix. Now you adjust our chain. On your chain there's a little hook in and I take that all the way off to begin with. Then I hook it on your handle. Then put this down in resting position. Bring your chain up so that there's no slack. Line up the highest point of the chain before you start lifting it up to the bottom of this kind of clevis and then link it there. Set it back down and now in resting position the chain is holding. It's not completely submerged or slacked but when I lift it up it'll stay up. Now let's fill it back up. So we'll turn our water

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