What is the best way to replace an American Standard toilet flush handle?

To replace an American Standard toilet flush handle, follow these steps:

1. Turn off the water supply to the toilet.
2. Remove the old handle by unscrewing the nut inside the tank.
3. Install the new handle by attaching it to the flush rod and securing it with the nut.
4. Turn the water supply back on and test the flush handle to ensure it is working properly.