how do you know when your done flushing your plants?

Do all the leaves have to be dead/yellow? Im using a top drip hydro system and its on its fifth day of flushing. The thing is, today is the day i scheduled it to be cut down. A lot of the leaves are still somewhat green. Should I flush for a few more days or just chop it?

You'll want to judge by trichomes not your leaves.

The turd goes down the toilet ??
I hate those double flusher poo's ...