Adjust the Flapper Chain Length

What happens here

To correct the issue, carefully unclip the flapper chain from the flush lever arm. The video demonstrates taking some slack out of the chain by shortening it by one or two links. This adjustment ensures that the chain is not too long, which could cause it to get caught under the flapper, nor too short, which would prevent the flapper from closing completely. Once the desired length is achieved, re-clip the chain back onto the flush lever arm, making sure it has a slight amount of slack when the flapper is closed.

Goal: Shorten the flapper chain to prevent it from getting caught under the flapper.